Natural Phenomena Sources

	565		outer space
			source





	564		matter
			source





	563		milky way
			source




	562		supernova
			source







	561		pleiades
			source

			Schloss Solitude, Stuttgart, Germany




	560		apparent retrograde motion
			source





	559		planets
			source





	558		polaris
			source





	557		constellations
			source








	556		scintillation
			source




	555		meteoroid
			source





	554		man in the moon
			source





	553		harvest moon
			source





	552		moon
			source




	551		echolocation
			source






	550		light pillar
			source

			Victor, Idaho, USA



	549		aurora
			source

			Kulusuk, Greenland





	548		irisation
			source







	547		fog bow
			source







	546		rainbow
			source

			Wrangell-St. Elias National Park, Alaska



	545		alpenglow
			source

			Latemar, Südtirol, Italy





	544		midnight sun
			source

			Andørja, Norway





	543		solar eclipse
			source

			Lusaka, Zambia, Africa




	542		sun dog
			source

			New Ulm, Minnesota, USA





	541		sunspot
			source

			New York, New York, USA





	540		sunset
			source






	539		twilight
			source

			Fremont, California, USA




	538		golden hour
			source

			Atlanta, Georgia, USA




	537		zenith
			source

			Mactan, Philippines




	536		light
			source







	535		sun
			source







	534		drought
			source

			Southeast Australia







	533		sheet lightning
			source







	532		catatumbo lightning
			source

			Lake Maracaibo, Venezuela





	531		ball lightning
			source






	530		lightning
			source










	529		supercell
			source

			Glasgow, Montana, USA



	528		precipitation
			source

			Berlin, Germany




	527		cirrus cloud
			source







	526		cirrostratus cloud
			source







	525		cirrocumulus cloud
			source








	524		altostratus cloud
			source








	523		altocumulus cloud
			source









	522		stratocumulus cloud
			source






	521		cumulonimbus cloud
			source







	520		cumulus cloud
			source






	519		nimbostratus cloud
			source







	518		stratus cloud
			source







	517		guttation
			source



			Strawberry


	516		dew
			source







	515		humidity
			source







	514		fog
			source

			Leibertingen, Germany




	513		kelvin–helmholtz instability
			source

			Denver, Colorado, USA




	512		lenticular cloud
			source

			Boulder, Colorado, USA




	511		mammatus cloud
			source

			Hastings, Nebraska, USA





	510		tornado
			source







	509		dust devil
			source







	508		dust storm
			source

			Sudan, Africa



	507		haze
			source

			Tuscany, Italy





	506		trade winds
			source

			Florida Keys, USA




	505		wind
			source






	504		monsoon
			source

			Guangxi Zhuang, China




	503		serengeti migration
			source

			Serengeti, Tanzania




	502		coriolis effect
			source

			Quito, Ecuador






	501		entropy
			source

			Canton, Massachusetts







	500		chaos theory
			source

			Gavia Pass, Italy

			Scarce Copper



	499		thaw
			source



			Snowdrops



	498		snowflake
			source







	497		blizzard
			source

			Central Experimental Farm, Ottawa, Ontario, Canada




	496		ice dam
			source

			Grasse River, New York, USA





	495		drift ice
			source

			Elbe, Magdeburg, Germany




	494		ice circle
			source

			Misvær, Norway





	493		ice
			source

			Eastern Ontario, Canada





	492		icicle
			source

			Warmensteinach, Bavaria, Germany





	491		frost
			source

			France




	490		autumn leaves
			source






	489		thermal
			source

			Lake Oswego,Oregon, USA




	488		nosediving
			source

			Vogelpark Steinen, Schwarzwald, Germany

			Falcon



	487		mobbing behavior
			source

			Warren Township, New Jersey, USA

			Red-shouldered Hawk


	486		flight
			source

			Gossau, Switzerland

			Common Buzzard


	485		bird migration
			source










	484		weather lore
			source



			Swallow


	483		seasons
			source







	482		atmosphere-blueness
			source

			Blue Ridge Mountains, USA





	481		color of water
			source






	480		earth's atmosphere
			source







	479		entoptic phenomena
			source






	478		horizon
			source







	477		scattering
			source

			Santa Catarina, Brazil





	476		umbra
			source

			La Sal Mountains, Utah, USA






	475		shadow
			source

			Olbernhau, Germany





	474		colors
			source







	473		sonnentaler
			source






	472		crepuscular rays
			source

			Grand Tetons, Wyoming, USA




	471		sun glitter
			source









	470		reflection
			source







	469		refraction
			source






	468		mirage
			source

			Southwest Finland




	467		drag
			source

			Capernwray, England

			Trout



	466		caustics
			source







	465		buoyancy
			source






	464		surface tension
			source

			Cadboro BayVictoria, British Columbia, Canada




	463		hydrophobicity
			source






	462		hermit crab
			source






	461		pearl
			source






	460		amber
			source

			Ahrenshoop, Baltic Sea, Germany





	459		driftwood
			source






	458		salt marsh
			source

			Spieka Neuholz, Germany



	457		dunes
			source







	456		mudskipper
			source

			East Coast, Australia




	455		brackish water
			source

			Karbi, Thailand






	454		mangrove
			source

			Drake Bay, Costa Rica





	453		beach cusps
			source

			Matalascañas, Spain





	452		strandline
			source






	451		cove
			source

			Chaplin Bay, Bermuda




	450		bay
			source

			Karikari Penninsula, New Zealand




	449		cycads
			source

			Nong Nooch Tropical Botanical Garden, Thailand







	448		palmae
			source














	447		lagoon
			source










	446		beach
			source

			Dominican Republic




	445		atoll
			source





	444		archipelago
			source

			Jolo, Philippines




	443		island
			source

			Maldives, Indian Ocean





	442		guano
			source

			Iles Ballestas, Peru





	441		balancing rock
			source

			Digby, Long Island, Nova Scotia, Canada






	440		stack
			source

			Islay, Inner Hebrides, Scotland







	439		natural arch
			source

			Lands End, Gulf of California, Mexico





	438		cliff
			source

			Kornati, Croatia





	437		macchia
			source







	436		continental shelf
			source







	435		baleen
			source

			East Coast, Australia





	434		whale song
			source

			Hawaii

			Humpback whale




	433		flying fish
			source







	432		sail
			source

			Florida Keys

			Portuguese Man o' War







	431		whale surfacing
			source



			Killer Whale



	430		seaweed
			source



			Seaweed


	429		kelp forest
			source



			Kelp


	428		algae
			source






	427		plankton
			source

			New Zealand

			Krill


	426		marine mammal
			source

			Gulf of California, Mexico

			Blue Whale



	425		mesopelagic zone
			source

			Nusa Penida, Bali, Indonesia

			Ocean Sunfish








	424		bathyal zone
			source

			North East Pacific, British Columbia

			Giant octopus


	423		abyssal zone
			source



			Anglerfish


	422		black smoker
			source







	421		hadal zone
			source

			Northern Gulf of Mexico

			Sea anemone



	420		seamount
			source






	419		submarine eruption
			source

			Kavachi, Pacific Ocean





	418		bermuda triangle
			source







	417		gas hydrate
			source





	416		electric organ
			source





	415		living fossil
			source



			Coelecanth


	414		squid suckers
			source



			Common Octopus



	413		mussels
			source

			Peconic Bay Long Island, New York, USA

			Blue Mussel



	412		echinoderm
			source

			Pulau Weh, Sumatra, Indonesia

			Starfish






	411		asexual reproduction
			source



			Bubble-Tip Anemone





	410		coral
			source


			Haddon's Carpet Anemone



	409		stromatolite
			source

			Western Australia





	408		reef
			source

			Green Island Cairns, Queensland, Australia








	407		fish
			source



			Horse eye jack



	406		feeding frenzy
			source

			Kaikoura, New Zealand

			Albatross


	405		sardine run
			source

			Port Saint Johns, Eastern Cape, South Africa




	404		fish migration
			source



			Salmon



	403		iceberg
			source

			South Pacific Ocean, Antarctica






	402		whiteout
			source







	401		blue ice
			source

			Dome C, Antarctic Plateau





	400		ice sheet
			source

			Kangerlussuaq, Greenland




	399		ice shelf
			source







	398		pack ice
			source

			Port Austin Lighthouse, Lake Huron, USA




	397		ice calving
			source

			Svalbard, Arctic Ocean, Norway






	396		icefish
			source



			Chionodraco hamatus


	395		prostitution
			source

			Gerlache Strait, Antarctic Peninsula

			Gentoo Penguin


	394		polar regions
			source



			King Penguin



	393		rip current
			source

			Monterey, California, USA





	392		interference
			source

			Cook Inlet, South Island, New Zealand





	391		wave breaking
			source







	390		swell
			source






	389		rogue wave
			source






	388		sea state
			source

			Atlantic





	387		gulf stream
			source

			Atlantic







	386		oceans
			source

			Atlantic






	385		continents
			source

			Tanger, Morocco, Africa





	384		sound
			source

			Currituck Sound, North Carolina, USA





	383		ria
			source







	382		river delta
			source

			Copper River, Alaska, USA





	381		estuary
			source

			Salmon River, Oregon, USA





	380		tsunami
			source








	379		tidal creek
			source







	378		tide pool
			source

			Ruby Beach, Washington, USA





	377		mudflat
			source

			Dagebüll, Germany





	376		tide
			source






	375		gravel beach
			source

			Te Awanga, New Zealnad





	374		condensation
			source









	373		fire
			source







	372		smoke
			source







	371		charcoal
			source








	370		wildfire
			source






	369		ground fire
			source







	368		arsenic-based life
			source

			Mono Lake, California, USA




	367		archaea
			source

			Yellowstone, Wyoming, USA




	366		hot springs
			source

			Pamukkale, Turkey





	365		geysir
			source

			Haukadalur, Iceland





	364		fumarole
			source

			Norris Basin, Yellowstone, Wyoming, USA







	363		mudpot
			source

			Puritama Hotsprings, Atacama, Chile





	362		sulfur
			source

			Mount Papandayan, West Java, Indonesia





	361		plume
			source

			Kilauea volcano, Hilo, Hawaii





	360		pyroclastic flow
			source

			Soufrière Hills Montserrat, Caribbean






	359		volcano
			source







	358		lava
			source

			Kilauea, Hawaii, USA




	357		magma
			source

			Kilauea, Hawaii, USA







	356		pluton
			source

			Devils Tower, Wyoming, USA




	355		parícutin volcano
			source

			Michoacán, Mexico





	354		caldera
			source

			Newberry Caldera, Oregon, USA





	353		impact crater
			source






	352		earthquake
			source

			L'Aquila, Italy




	351		rift
			source

			Butiaba Escarpment, Western Rift Valley, Uganda





	350		fault line
			source

			San Andreas Fault, California, USA








	349		underground lake
			source

			Bozkov Dolomite Caves, Czech Republic




	348		subterranean river
			source

			Ariège, Grotte du Mas d'Azil, France




	347		speleothem
			source






	346		speleothem
			source

			Eisriesenwelt, Austria





	345		cave
			source

			Deer Cave, Gunung Mulu National Park, Malaysia





	344		fossil
			source







	343		gemstone
			source

			Herkimer County, New York

			Diamond



	342		cave of crystals
			source

			Cueva de los Cristales, Chihuahua, Mexico




	341		ore
			source



			Gold


	340		loess
			source






	339		sedimentary rock
			source

			Navajo Sandstone, Utah, USA



			Sandstone




	338		sedimentary rock
			source

			Robben Island, Africa



			Limestone


	337		sedimentary rock
			source



			Coal


	336		igneous rock
			source



			Granite





	335		igneous rock
			source



			Basalt


	334		metamorphic rock
			source



			Slate



	333		metamorphic rock
			source

			Devils Marbles, Northern Territory, Australia

			Marble



	332		glacial erratic
			source






	331		drumlin
			source







	330		quicksand
			source







	329		clay
			source



			Clay



	328		laterite
			source

			Orissa, India





	327		radioactivity
			source

			Uranophane

			Sankt Blasien, Schwarzwald, Germany




	326		meteorite
			source






	325		magnetite
			source







	324		natural gas
			source

			Darvaza, Turkmenistan




	323		petroleum
			source





	322		arctic methane release
			source






	321		frost boil
			source







	320		patterned ground
			source






	319		pingo
			source







	318		tundra
			source



			Caribou



	317		taiga
			source

			James Bay, Ontario, Canada





	316		heath
			source

			Lueneburger Heide, Germany

			Ericaceae



	315		marsh
			source

			Amboseli National Park, Rift Valley, Kenia, Africa





	314		peat
			source

			Maungatua, New Zealnad







	313		bog-wood
			source










	312		quaking bog
			source

			Tamsweg District, Austria





	311		bog
			source

			Hechtmoor, Schleswig-Flensburg, Germany





	310		cattail
			source



			Cattail



	309		leafs
			source








	308		trichome
			source










	307		hitchhikers
			source



			Burdock






	306		wind dispersal
			source



			Dandelion





	305		exploders
			source

			River Lune, England

			Himalayan Balsam



	304		rapid plant movement
			source



			Mimosa pudica




	303		evergreen
			source



			Rhododendron



	302		poor design
			source



			Giant panda



	301		homoplasy
			source



			Horsetail







	300		bamboo
			source



			Bamboo



	299		rhizome
			source

			Brown Summit, North Carolina

			Iris





	298		stolon
			source



			Common Silverweed




	297		wild type
			source



			Woodland strawberry



	296		clonal colony
			source

			Pines Ranch, Utah, USA

			Quaking Aspen




	295		longevity
			source

			White Mountains, California, USA

			Bristlecone Pine




	294		lignification
			source








	293		thorns
			source



			Rose



	292		brambles
			source



			Blackberry



	291		spadix
			source



			Maize



	290		fabaceae
			source



			Fava Bean






	289		stem
			source



			Asparagus






	288		petiole
			source



			Rhubarb


	287		immature flower cluster
			source



			Broccoli






	286		cucurbits
			source



			Cucumber







	285		peanuts
			source



			Peanut




	284		root tuber
			source



			Sweet Potato





	283		stem tuber
			source



			Potato





	282		bulb
			source



			Onion



	281		leafy head
			source



			Cabbage




	280		herb
			source



			Peppermint







	279		umbelliferae
			source



			Hogweed



	278		anthesis
			source

			Thousand Oaks, California, USA

			Aloe arborescens










	277		monocots
			source



			Lily


	276		dicots
			source



			Sunflower





	275		wildflower
			source








	274		grasses
			source

			Flint Hills, Kansas, USA

			Echinacea



	273		weeds
			source



			Chamomile





	272		indicator plant
			source

			Dawlish Warren, Devon, England

			Sheep's Sorrel



	271		cotton
			source



			Cotton



	270		flax fibre
			source



			Flax



	269		psychedelic plants
			source

			Stade, Germany

			Rye, Longhorn Beetle



	268		caryopsis
			source



			Rye Brome



	267		grains
			source

			Hampshire, England

			Timothy-Grass



	266		birdsong
			source

			Elbtalaue, Germany

			Tree Pipit



	265		odor
			source

			Vorstetten, Schwarzwald, Germnany





	264		curiosity
			source







	263		imprinting
			source

			Belleville, Ontario, Canada

			Wild Duck



	262		imitation
			source

			Saint Michael, Barbados, Caribbean Sea

			Green Monkey


	261		play
			source

			Okehampton, England

			Lakeland Terrier



	260		monogamy
			source

			Straits of Mackinac, Michigan, USA

			Swan


	259		altruism
			source



			Toad




	258		ageing
			source



			Desert Tortoise


	257		tears
			source





	256		laughter
			source

			Sonoma County, California, USA








	255		feathers
			source

			Narrows, Virginia

			Greylag Goose



	254		fixed action pattern
			source



			Greylag Goose



	253		brood parasitism
			source



			Cuckoo, Red Warbler






	252		egg
			source

			Wien, Austria

			Blackbird


	251		incubation
			source



			Hummingbird



	250		fat
			source



			European Hamster




	249		gestation
			source



			Horse





	248		mammary gland
			source



			Cow











	247		gynandromorph
			source



			Common Blue



	246		hermaphrodite
			source



			Burgundy Snail



	245		compound eyes
			source







	244		pupa
			source



			Dragonfly







	243		exception
			source



			Platypus


	242		metamorphosis
			source



			Tadpole



	241		cardinal direction
			source



			Compass-Termites


	240		sexual reproduction
			source



			Lion


	239		courtship
			source



			Jackrabbit


	238		kommentkampf
			source



			Alpine ibex


	237		allogrooming
			source



			Zebra


	236		cuddling
			source







	235		spraying
			source

			Madhya Pradesh, India

			Indian Leopard




	234		flehmen response
			source



			Gemsbok



	233		body language
			source

			Bad Mergentheim Wildlife Park, Germany

			Grey Wolf

	232		hormones
			source



			African Elephant


	231		fermentation
			source



			African Elephant



	230		salt lick
			source

			Banff, Alberta, Canada

			Bighorn Sheep



	229		gastrolith
			source

			Gemarkenhof, Remagen, Germany

			Ostrich



	228		ruminating
			source



			Zebu


	227		feralization
			source

			Cape Canaveral, Florida, USA

			Feral pigs


	226		dust bath
			source



			Bison



	225		bergmann's rule
			source



			Iberian Lynx


	224		thermoregulation
			source

			Pirin Mountains, Bulgaria

			Grey Wolf




	223		sun tanning
			source



			Komodo Dragon



	222		stationary flight
			source



			Ruby-throated_Hummingbird



	221		honey
			source







	220		waggle dance
			source



			Honey Bee



	219		animal communication
			source



			Meerkats



	218		stotting
			source



			Impala



	217		adaptation
			source



			Arabian Camel



	216		vestigiality
			source



			Ostrich


	215		endemism
			source



			Koala






	214		hibernation
			source



			Hazel Dormouse




	213		estivation
			source



			Snail



	212		sleep
			source



			Great Dane



	211		sloth
			source

			Costa Rica

			Sloth




	210		gliding mammals
			source



			Colugo


	209		mutation
			source

			Tuscany, Italy

			Red Deer




	208		hybrid
			source



			Hinny, Mule



	207		melanism
			source



			Barn Owl


	206		carnivorous plant
			source



			Venus Flytrap




	205		mimicry
			source

			Sardinia, Italy

			Bee Orchid








	204		aposematism
			source

			New Mexico, USA

			Harlequin Cabbage Bug




	203		stridulation
			source



			Cicada







	202		apparent death
			source



			Grass Snake


	201		regeneration
			source



			Western fence lizard


	200		camouflage
			source



			Chameleon



	199		gecko toes
			source

			Puerto Rico

			Gourd, Gecko











	198		urbanization
			source

			Piazza San Marco, Venice, Italy

			Feral Pigeon


	197		talking birds
			source

			Disney World, Florida

			Parrot, Homo spaines



	196		larynx
			source



			Siamang





	195		self medication
			source

			Kibale National Park, Uganda

			Chimpanzee


	194		thumb
			source

			West Africa

			Chimpanzee



	193		tribe
			source

			Congo

			Gorilla


	192		honeydew
			source

			Holland

			Aphid






	191		queen ant
			source



			Ant


	190		ant mill
			source

			Sayil, Yucatán, Mexico

			Ant


	189		swarm intelligence
			source



			Ant






	188		randomness
			source

			Yucatán, Mexico

			Flamingo


	187		colony
			source

			Lake Bogoria, Kenya

			Flamingo


	186		collective behavior
			source

			Fuerteventura, Atlantic Ocean, Spain

			Locust


	185		drinking
			source



			Thomson's Gazelle


	184		animal tracks
			source

			Lake County, California





	183		feces
			source



			Earthworm



	182		mole burrow
			source



			Mole



	181		work
			source

			South Africa

			Dung Beetle


	180		silk
			source



			Silkworm






	179		Diving bell spider
			source



			Diving bell spider



	178		spider net
			source



			Spider



	177		venom
			source



			Scorpion



	176		parasitism
			source



			Cat


	175		symbiosis
			source



			Egyptian Plover


	174		life
			source

			Tanzania, Africa





	173		carrion
			source

			Masai Mara, Kenya

			Hyena, Vulture, Marabou Stork



	172		predation
			source

			Tanzania, Africa





	171		locomotion
			source

			Kenya, Africa

			Wildebeest


	170		nocturnality
			source

			Healesville Sanctuary, Victoria, Australia

			Eastern Quoll



	169		bioluminescence
			source



			Firefly

	168		iridescence
			source



			Morpho peleides



	167		translucency
			source

			Costa Rica

			Glass frog




	166		paper
			source



			Wasp




	165		ball
			source



			Tumbleweed




	164		catapult
			source

			Miami, Florida, USA

			Lubber grasshopper


	163		elasticity
			source






	162		structural bracing
			source

			Waimea Falls Park, Hawaii

			Victoria amazonica, Common Moorhen



	161		phyllotaxis
			source

			Battle Creek, Michigan, USA

			Japanese Hedge Parsley



	160		hexagon
			source



			Breadfruit



	159		fibonacci sequence
			source



			Aloe polyphylla



	158		symmetry
			source

			Brazil






	157		noble rot
			source







	156		ripening
			source

			France

			Vitis vinifera


	155		nut
			source

			Germany

			Walnut



	154		gravitation
			source







	153		flower
			source



			Apple



	152		bud
			source



			Sweet chestnut



	151		branches
			source









	150		maple syrup
			source

			Michigan, USA

			Sugar maple



	149		carpillary action
			source






	148		tree
			source

			Northumberland, England

			Sycamore


	147		root
			source

			Smokey Mountains, USA





	146		tropism
			source









	145		plant growth
			source

			Jones Meadow Park, Illinois

			Willow



	144		shoot
			source







	143		germination
			source

			Maine-et-Loire





	142		soil
			source






	141		cork
			source



			Cork Oak




	140		resin
			source

			Santa Cruz

			Pine




	139		cone
			source

			Ohio

			Red Pine


	138		pollen
			source






	137		coniferae
			source

			Sequoia National Park, California, USA




	136		wood
			source






	135		association
			source



			Bluebells



	134		decidious forest
			source

			Thelkow, Germany





	133		grove
			source



			Aspen



	132		shrub
			source







	131		browse line
			source

			Monmouth County Park System, New Jersey





	130		glade
			source






	129		fungus
			source






	128		biodegradation
			source







	127		parasitic plant
			source

			Komárom-Esztergom County, Hungary





	126		disease
			source

			Thunder Ridge Wilderness Area, Virginia





	125		thicket
			source







	124		rainforest
			source

			Mexico

			Toucan



	123		canopy
			source







	122		epiphytic
			source







	121		vine
			source

			Santa Elena Cloud Forest, Costa Rica





	120		fern
			source

			Derby Reach Regional Park, British Columbia, Canada




	119		moss
			source

			Småland, Sweden





	118		lichen
			source






	117		shade tolerance
			source

			Barro Colorado Island, Panama

			Dipteryx saplings



	116		forest
			source








	115		pond
			source

			Northwoods, Wisconsin, USA





	114		oxbow lake
			source






	113		maar
			source

			Windsborner Kratersee, Eifel, Germany




	112		lakes district
			source

			Lake Temagami, Ontario, Canada





	111		meromictic lake
			source

			Pink Lake, Gatineau Park, Quebec, Canada





	110		lake
			source

			Lake Baikal, Russia




	109		cenote
			source

			Chichen Itza, Mexico




	108		limestone pavement
			source

			Gordale Scar, North Yorkshire, England





	107		karst topography
			source

			China





	106		mogote
			source

			Chocolate Hills, Philippines





	105		arroyo
			source







	104		dell
			source



			Italy



	103		riparian forest
			source








	102		river island
			source

			Dnieper River




	101		braided river
			source

			Waimakariri, Canterbury, South Island, New Zealand





	100		sediment transport
			source

			Virgin River, Utah





	99		rock-cut basin
			source









	98		erosion
			source







	97		canyon
			source

			Letchworth State Park, New York, USA





	96		cascade
			source

			Torc Cascade, Killarney National Park, Ireland













	95		waterfall
			source

			Salto Angel, Venezuela




	94		beaver dam
			source







	93		aquatic plant
			source







	92		bayou
			source

			Plaquemine, Louisiana, USA




	91		backwater
			source

			La Crosse, Wisconsin, USA





	90		meander
			source

			River Cuckmere, England





	89		inland delta
			source

			Okavango Delta, Botswana, Africa





	88		floodplain
			source

			Aland, Elbe, Germany




	87		flood
			source






	86		confluence
			source







	85		chute
			source

			Three Rock Chute, Musquash River, Ontario




	84		standing wave
			source

			Habitat Standing wave, Saint Laurent, Montreal, Quebec, Canada





	83		hole
			source






	82		eddy
			source





	81		rapid
			source

			Salmon River, Idaho, USA








	80		whirlpool
			source






	79		stream pool
			source

			Lam Tsuen River, China





	78		river
			source

			River, Nepal





	77		bank
			source






	76		stream bed
			source







	75		ford
			source





	74		riffle
			source







	73		interlocking spurs
			source

			Yunnan, China








	72		stream
			source

			Ambro-Creek, Monti Sibillini National Park, Italy










	71		artesian aquifer
			source







	70		spring
			source







	69		groundwater
			source










	68		seep
			source

			Cornish, New Hampshire




	67		drainage divide
			source

			Lunghin Pass, Switzerland




	66		shield
			source

			Bancroft, Ontario





	65		resurrection plant
			source







	64		exfoliation joints
			source






	63		ecological succession
			source

			Caesars Head State Park, South Carolina, USA





	62		striations
			source

			Whistler, British Columbia, Canada






	61		moraine
			source






	60		fjord
			source

			Misty Fjord, Alaska, USA








	59		icefall
			source













	58		penitentes
			source

			Atacama, Chile




	57		firn
			source

			Heilbronner Weg, Allgäuer Hauptkamm, Germany




	56		névé
			source

			Fox Glacier, New Zealand




	55		proglacial lake
			source

			Perito Moreno, Argentina




	54		serac
			source

			Fox Glacier, New Zealand




	53		moulin
			source

			Mer de Glace, Mont Blanc Massif, France





	52		regelation
			source

			Robson Glacier, BC, Canada




	51		crevasse
			source

			Huayna Potosí, Bolivia




	50		glacier
			source









	49		avalanche
			source










	48		landslide
			source

			Guatemala




	47		downhill creep
			source







	46		krummholz
			source

			Liberty Pass, Lamoille Canyon, Nevada, USA





	45		flag tree
			source

			Colorado, USA





	44		hill
			source

			Pacheco Pass, Merced County, California, USA




	43		monolith
			source

			Sedona, Coconino National Forest, Arizona, USA




	42		summit
			source

			Mount Everest, Nepal




	41		arête
			source

			Striding Edge, Lake District, England





	40		tor
			source

			Hohneklippen, Germany





	39		pass
			source

			Mount Ball, Banff, Alberta, Canada






	38		cirque
			source

			Primrose Cirque, Mount Timpanogos, Utah, USA




	37		overhang
			source

			North Dome, Yosemite National Park, California, USA





	36		scree
			source

			Thor Peak, Sequoia National Park, California, USA





	35		alluvial fan
			source

			Cottonwood Mountains, Death Valley, California, USA





	34		echo
			source

			Echo Mountain, Angeles National Forest, Altadena, California, USA











	33		sound
			source

			Blackall Range, Queensland, Australia





	32		tree line
			source

			Banff, Alberta, Canada





	31		rock flour
			source

			Peyto Lake, Banff, Alberta, Canada





	30		paternoster lake
			source

			Lake O'Hara, Yoho National Park, British Columbia, Canada









	29		tarn
			source






	28		hanging valley
			source

			Bridal Veil Falls, Banff, Alberta, Canada






	27		alpine meadow
			source

			Talsenalm, Pillerseetal, Tirol, Austria





	26		mountain range
			source

			Sangre de Cristo Range, Colorado, USA





	25		u-shaped valley
			source

			Glacier National Park, Montana, USA





	24		valley
			source

			Tawoche, Everest & Lhotse, Dudh Kosi River, Nepal





	23		mountain
			source

			Gandaki, Annapurna Range, Nepal





	22		savanna
			source

			Tanzania, Africa





	21		sahel
			source

			Mali, Africa




	20		mesa
			source

			Grand Mesa, Colorado, USA





	19		table mountain
			source

			Mitzpe Ramon, Central Negev, Israel





	18		butte
			source

			Fajada Butte, New Mexico, USA




	17		hoodoo
			source

			Bryce Canyon National Park, Utah, USA




	16		surreal landscapes
			source

			Göreme Love Valley, Cappadocia, Turkey




	15		badlands
			source

			Borrego Springs, California, USA





	14		ecological niche
			source

			Galapagos Islands, Pacific Ocean, Ecuador

			Galapagos Mockingbird, Opuntia




	13		succulent
			source

			Baja California Desert, Mexico

			Saguaro


	12		hamada
			source








	11		pediment
			source








	10		serir
			source

			Sahara, Libya




	9		hypersaline lake
			source

			Dead Sea, Jordan







	8		salt lake
			source

			Uyuni Salt Pan, Bolivia





	7		sailing stones
			source

			Death Valley, Nevada, USA




	6		alcove
			source

			Island in the Sky, Canyonlands National Park, Utah





	5		tafoni
			source







	4		yardang
			source

			Dunhuang Yardang National Geologic Park, China




	3		ventifact
			source

			Arlit, Niger





	2		oasis
			source






	1		desert
			source

resources

technation	bordalierinstitute	rationalrevolution	evogeneao	visual merriam-webster

crystallinks	universe-review	online biology book	waynesword	huffingotnpost