One images - Joel Sartore

Photo: The endangered Florida Key deer’s cause wasn’t helped when developers found a loophole and put a housing development inside the Florida Key Deer NWR. The deer are hit and killed by motorists faster than they can reproduce.

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The endangered Florida Key deer’s cause wasn’t helped when developers found a loophole and put a housing development inside the Florida Key Deer NWR. The deer are hit and killed by motorists faster than they can reproduce.

Photo: The endangered Florida Key deer’s cause wasn’t helped when developers found a loophole and put a housing development inside the Florida Key Deer NWR. The deer are hit and killed by motorists faster than they can reproduce.

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The endangered Florida Key deer’s cause wasn’t helped when developers found a loophole and put a housing development inside the Florida Key Deer NWR. The deer are hit and killed by motorists faster than they can reproduce.

Photo: Pacific herring, Clupea pallasii, at the Alaska SeaLife Center.

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Pacific herring, Clupea pallasii, at the Alaska SeaLife Center.

Photo: Pacific herring, Clupea pallasii, at the Alaska SeaLife Center.

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Pacific herring, Clupea pallasii, at the Alaska SeaLife Center.

Photo: Arctic cookie star, Ceramaster arcticus, at the Alaska SeaLife Center.

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Arctic cookie star, Ceramaster arcticus, at the Alaska SeaLife Center.

An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet it is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet it is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

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A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

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A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

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A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

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A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

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A vulnerable (IUCN) Quitobaquito pupfish (Cyprinodon macularis eremus).

The Palos Verdes blue butterfly, now thought extinct (Glaucopsyche lygdamus palosverdesensis). This photo was taken at the Maguire Center for Lepidoptera and Biodiversity, Gainesville, FL. This is located on the campus of the University of Florida and is part of the Florida Museum of Natural History.

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The Palos Verdes blue butterfly, now thought extinct (Glaucopsyche lygdamus palosverdesensis). This photo was taken at the Maguire Center for Lepidoptera and Biodiversity, Gainesville, FL. This is located on the campus of the University of Florida and is part of the Florida Museum of Natural History.

Photo: An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

Photo: An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

Photo: A hawthorn (Crataegus collina) in Werner Park, Nashville, TN.

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A hawthorn (Crataegus collina) in Werner Park, Nashville, TN.

Photo: Pyne's ground plum or Guthrie's ground-plum (Astragalus bibullatus), a federally endangered plant that exists only in a one-mile-square area outside of Nashville within the 'cedar glades' ecosystem.

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Pyne’s ground plum or Guthrie’s ground-plum (Astragalus bibullatus), a federally endangered plant that exists only in a one-mile-square area outside of Nashville within the ‘cedar glades’ ecosystem.

Photo: An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

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An endangered (IUCN) and federally endangered Higgins eye pearly mussel (Lampsilis higginsii) at the Genoa National Fish Hatchery, Genoa, Wisconsin.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. They have ball lures on top that are used to attract fish to come near. When a fish strikes at the lures, the freshwater mussels then eject their larvae into the fish's gills and are able to increase their distribution that way.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. They have ball lures on top that are used to attract fish to come near. When a fish strikes at the lures, the freshwater mussels then eject their larvae into the fish’s gills and are able to increase their distribution that way.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens) taken from the Clinch River near Sneedville. These mussels and many others are in danger of extinction due to habitat loss due such as impoundments and pollution. Pollution from coal mining in the Clinch River watershed is of special concern. The fine sedimentation that comes downstream from the mines is thought to impede mussel survival.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish's gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

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Critically endangered (IUCN) and federally endangered Cumberlandian combshell (Epioblasma brevidens). It has lures that look like fish eggs on top that are used to attract fish. When a fish strikes at the lures, the mussels then eject their larvae into the fish’s gills and are able to increase their distribution, even upstream. The Clinch River has more federally listed aquatic species than any river in North America, yet is threatened by pollution and habitat loss. Coal mining in the watershed now raises the threat even more.

Masked bobwhite quail (Colinus virginianus ridgwayi), an endangered (IUCN) and federally endangered species, at the Phoenix Zoo.

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Masked bobwhite quail (Colinus virginianus ridgwayi), an endangered (IUCN) and federally endangered species, at the Phoenix Zoo.

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