Endangered Species

An endangered species is defined by the U.S. Fish & Wildlife Service as "an animal or plant species in danger of extinction throughout all or a significant portion of its range." In the United States, these animals can be listed under and protected by the Endangered Species Act. Endangered Species in the United States include the black-footed ferret and the California red-legged frog. The International Union for Conservation of Nature also keeps a Red List of Threatened Species, the most widely recognized list of endangered and threatened species. On this list, for example, are all the surviving subspecies of tiger, which range from endangered to critically endangered.
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Rarest Big Cat on Earth Starting to Make a Comeback
An Amur leopard.
February 23rd, 2015
Things are starting to look up for the rarest big cat on the planet.
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Wayward Grand Canyon Wolf Was Killed in Utah, DNA Confirms
Grand Canyon wolf
February 13th, 2015
DNA tests have confirmed that an endangered gray wolf killed in Utah in December was the same lone wolf that had been spotted and photographed near Arizona's Grand Canyon, the U.S. Fish and Wildlife Service announced this week.
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It's a Girl! Newborn Killer Whale Identified in Endangered Pod
Newborn Killer Whale
January 9th, 2015
Researchers have determined the baby orca born into a pod off the west coast is a female.
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Great White Sharks Are Late Bloomers
A great white shark cruises underwater in search of prey.
February 19th, 2015
Great white sharks may have an even more delayed adolescence than humans, not reaching sexual maturity until they are in their second and third decades, new research shows.
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Rare Red Fox Reappears in Yosemite Park
Sierra Nevada red fox
January 29th, 2015
The elusive and rare Sierra Nevada red fox has been spotted in Yosemite National Park for the first time in nearly a century.
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Newborn Killer Whale Brings Hope for Endangered Pod
The new baby orca swims alongside its presumed mother.
January 5th, 2015
A baby killer whale was born into the endangered J-pod that lives off the coast of Washington state.
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Two-Headed Baby Salamander Isn't Radioactive, But It Is Weird
A two-headed salamander tadpole.
December 10th, 2014
A salamander tadpole with two seemingly functional heads is born in Israel, and researchers are speculating that environmental pollutants or random mutation may have caused the defect.
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Mexican Wolf Population Now Tops 100 in US
February 17th, 2015
Federal officials counted 109 wild Mexican wolves, or lobos, in the Southwest in 2014, up from 83 in 2013. It's the fifth year in a row the small population has grown in the United States.
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Can 'Good' Bacteria Save Bats From Killer Fungus?
wns, white nose syndrome, bats
January 13th, 2015
Successfully combating the disease has been difficult, but a group has been exploring some new techniques that control the fungus using naturally occurring soil microbes.
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Monarch Butterflies Considered for Endangered Species Status
butterfly
January 2nd, 2015
The monarch butterfly, once common across the United States, could soon end up on the Endangered Species List.
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