Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Shane Gross / Invasive Lionfish (Pterois volitans) which have taken over and are wiping out native fish in the Atlantic ocean. The highest densities are in the northern gulf of Mexico. Destin, Florida, USA.

Jeff Foott / The Citadel Ruins, Cedar Mesa area, Bears Ears National Monument, Utah

Kristel Richard / An Indian cowboy has lost his balance from a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011, Sequence 3...

Jeff Vanuga / Native American Teepee rings on Table Mountain near Dubois, Shoshone reserve, Wyoming, USA, May 2009

Rob Tilley / Rock engravings of the native american Pueblo people, Chaco Culture National Historical Park, New Mexico, USA, February 2009

ZSSD / African Hedgehog (Atelerix algirus) baby next to American dime to show scale, native to Africa

Jim Brandenburg / Inuits dog sledding in midnight sun, Ellesmere Island, Nunavut, Canada

Norbert Wu / American Paddlefish (Polyodon spathula) can sense electrical fields with long paddle, native to Mississippi River drainage system

Nigel Cattlin / Yellow trumpet pitcherplant (Sarracenia flava) flower and insect trapping pitcher. Native to USA.

John Cancalosi / House sparrow (Passer domesticus) male flying from nest in Saguaro (Carnegiea gigantea) cactus. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran desert,...

John Cancalosi / House sparrow (Passer domesticus) male at nest in Saguaro (Carnegiea gigantea) cactus cavity. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran desert, A...

John Cancalosi / House sparrow (Passer domesticus) female feeding chicks at nest in Saguaro (Carnegiea gigantea) cactus. Non-native bird species that competes with native species for nesting cavities in cacti. Sonoran...

Heather Angel / Orange bush monkeyflower (Mimulus aurantiacus). Native to California and Oregon, USA. Focus stacked.

Heather Angel / Flannel bush (Fremontodendron 'California Glory') exposed and overflowing nectaries fluorescuing in UV light. Native to southwest USA.

Heather Angel / Flannel bush (Fremontodendron 'California Glory') with exposed nectar glistening in sun. Native to southwest USA.

Heather Angel / Southern magnolia / Bull bay (Magnolia grandiflora) flower. The opening and closing of petals controls the time beetle pollinators enter and leave the flower. Cultivated in garden, Surrey, England, UK...

Heather Angel / Tulip tree (Liriodendron tulipifera) flower with orange band to attract bees, produces copious nectar. In visible light. Surrey, England, UK. Native to USA. Focus stacked. Sequence 1/2.

Heather Angel / Southern catalpa (Catalpa bignonioides) flowers. Recently opened with yellow nectar guides, purple in older pollinated flowers. Surrey, England, UK. Native to USA.

Heather Angel / Tulip tree (Liriodendron tulipifera) flower, pollen and nectar fluorescing in UV light. Surrey, England, UK. Native to USA. Focus stacked. Sequence 2/2.

Marie Read / Bird-friendly garden in full bloom in summer, New York, USA, including purple coneflowers (Echinacea purpurea) and green-headed coneflowers (Rudbeckia laciniata), black-eyed susans (Rudbeckia sp.), be...

Steve Gettle / American Kestrel (Falco sparverius), native to North America

Jeff Foott / Ancestral Puebloan ruins, Road Canyon, Bears Ears National Monument, Utah

Jeff Foott / Ancestral Puebloan ruins, Road Canyon, Bears Ears National Monument, Utah

Philippe Clement / Blue Cloak Colorado white-fir (Abies concolor), native to western North America, April

Jeff Foott / Moon House ruins, Grand Gulch, Bears Ears National Monument, Utah

Jeff Foott / Newspaper Rock, a petroglyph panel of predominantly Ute images, Bears Ears National Monument, Utah

Jeff Foott / Newspaper Rock, a petroglyph panel of predominantly Ute images, Bears Ears National Monument, Utah

Ingo Arndt / Ancient Native American ruins, White House ruins, first inhabited around 1200 CE by the Anasazi (Ancient Pueblos) culture, Canyon de Chelly National Monument, Arizona, USA, October

Ingo Arndt / Ancient Native American ruins, White House ruins, first inhabited around 1200 CE by the Anasazi (Ancient Pueblos) culture, Canyon de Chelly National Monument, Arizona, USA, October

Ingo Arndt / Ancient Native American ruins, White House ruins, first inhabited around 1200 CE by the Anasazi (Ancient Pueblos) culture, Canyon de Chelly National Monument, Arizona, USA, October

Ingo Arndt / Ancient Native American ruins, White House ruins, first inhabited around 1200 CE by the Anasazi (Ancient Pueblos) culture, Canyon de Chelly National Monument, Arizona, USA, October

Ingo Arndt / Ancient Native American ruins, White House ruins, first inhabited around 1200 CE by the Anasazi (Ancient Pueblos) culture, Canyon de Chelly National Monument, Arizona, USA, October

Jeff Foott / Ruin in Grand Gulch, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / River House Ruin, Butler Wash, Bears Ears National Monument, Utah

Jeff Foott / Moon House ruins, Grand Gulch, Bears Ears National Monument, Utah

Jeff Foott / Moon House ruins, Grand Gulch, Bears Ears National Monument, Utah

Jeff Foott / Moon House ruins, Grand Gulch, Bears Ears National Monument, Utah

Jeff Foott / Doll House Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Doll House Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / House on Fire Ruin, Mule Canyon, Bears Ears National Monument, Utah

Jeff Foott / Honeycomb Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Honeycomb Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Honeycomb Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Caprock Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Caprock Ruin, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Thunderbird petroglyph made by Ancestral Puebloans, Comb Ridge, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Thunderbird petroglyph made by Ancestral Puebloans, Comb Ridge, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Caprock Ruin at sunset, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Caprock Ruin at sunset, Cedar Mesa, Bears Ears National Monument, Utah

Jeff Foott / Fallen Roof granaries ruin, Bears Ears National Monument, Utah

Philippe Clement / Great blue lobelia / Great lobelia (Lobelia siphilitica) in flower, native to eastern and central Canada and United States

Michael Durham / Tipi frames under the Milky Way from a Nez Perce encampment, Big Hole National Battlefield, Montana

Michael Durham / Teepee frames under the Milky Way from a Nez Perce encampment, Big Hole National Battlefield, Montana

Paul D Stewart / Illustration of Carolina parrot (Conuropsis carolinensis) from W. T. Greene Parrots In Captivity, George Bell and Sons, 1884 - 1887. Wood engraving by Benjamin Fawcett after drawings by A.F. Lydon. Th...

Cyril Ruoso / Inmates tending to native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending to native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending to native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending to native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending to native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

Cyril Ruoso / Inmates tending native prairie plant seedlings as part of Sustainability in Prison program, Stafford Creek Corrections Center, Washington, USA. September 2012.

ZSSD / Bald Eagle (Haliaeetus leucocephalus), native to North America

Matthias Breiter / Pine Marten (Martes martes), native to Europe

Jeff Rotman / Native Alaskan preparing Sockeye salmon (Oncorhynchus nerka) for traditional smoking. Naknek, Bristol Bay, Alaska, USA, June. Model released.

MYN / JP Lawrence / Dame's rocket (Hesperis matronalis) invasive species, native to Europe. Wolf Lake, Michigan, USA, May. Meetyourneighbours.net project.

Steven David Miller / Petroglyphs in sandstone cliff, from the Formative period (between 1000 BC and 500 AD) Moab Area, Colorado, USA. September 2013.

Steven David Miller / Petroglyphs in sandstone cliff, from the Formative period (between 1000 BC and 500 AD) Moab Area, Colorado, USA. September 2013.

Steven David Miller / Petroglyphs in sandstone cliff, from the Formative period (between 1000 BC and 500 AD) Moab Area, Colorado, USA. September 2013.

Daniel Heuclin / Navajo man riding horse in front of rock formations of Monument Valley, Utah, USA, May 2014.

Richard Herrmann / Cobble rock which was used to create stone tools, San Jeronimo Island, Baja California, Mexico

Roland Seitre / West Indian Manatee (Trichechus manatus), native to western north Atlantic

Roland Seitre / American Badger (Taxidea taxus) at burrow, native to North America

Roland Seitre / American Badger (Taxidea taxus) at burrow, native to North America

Michael Durham / Pacific Lamprey (Petromyzon tridentatus) held by Umatilla tribe member and fisheries biologist Aaron Jackson with water flowing over Willamette Falls in background as part of treaties restrictions so...

Matthias Breiter / Kadjuk Bird Pole carved by the Tlingit people, Totem Bight State Historical Park, Ketchikan, Alaska

Matthias Breiter / Man Wearing Bear Hat Totem carved by the Tlingit people acts as grave marker, Totem Bight State Historical Park, Ketchikan, Alaska

Matthias Breiter / Thunderbird and Whale Totem, a Haida mortuary pole, Totem Bight State Historical Park, Ketchikan, Alaska

Alex Hyde / Signal Crayfish (Pacifastacus leniusculus), a species introduced to the UK from North America. They are far larger and more aggressive than the native species, and can easily out-compete them. Photog...

Yva Momatiuk & John Eastcott / Steller's Sea Lion (Eumetopias jubatus) entangled pup being freed by stewardship students and instructor, Aleutian Islands, Alaska

Tom Vezo / Native American ruins, Mesa Verde National Park, Colorado

Tom Vezo / Native American ruins, Mesa Verde National Park, Colorado

Tom Vezo / House on Fire Ruin, Mule Canyon, Bears Ears National Monument, Utah

Kristel Richard / A quarter horse is being saddled for the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / A traditionally dressed Crow Indian woman rides a paint horse during the parade, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / A traditionally dressed Crow Indian man rides an appaloosa horse during the parade, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / Two Indian cowboys, mounted on quarter horses, try to catch a steer during the All Indian Rodeo, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / An Indian cowboy, mounted on a quarter horse, tries to catch a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2...

Kristel Richard / Two Indian cowboys, mounted on quarter horses, try to catch a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, at Crow Agency, near Billings, Montana, USA, August...

Kristel Richard / An Indian cowboy tries to stay on a bronc or wild quarter horse during the All Indian Rodeo, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / Two Indian cowboys, mounted on quarter horses, try to catch a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 20...

Kristel Richard / An Indian cowboy losing his balance from a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2011, Sequence 2/3

Kristel Richard / An Indian cowboy tries to stay on a bronc or wild paint horse during the All Indian Rodeo, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2011, Sequence 1/3

Kristel Richard / The first two Indian jockeys mounted on thoroughbred horses to pass the finishing line at the All Indian Race, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2011

Kristel Richard / The first two Indian female jockeys mounted on thoroughbred horses to pass the finishing line at the All Indian Race, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2...

Kristel Richard / Indian jockeys mounted on thoroughbred horses rush out to win the All Indian Race, at the annual Indian Crow Fair, Crow Agency, near Billings, Montana, USA, August 2011