New research reveals exactly how inbred the Devils Hole pupfish is.
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.
Researchers have carried out the most comprehensive study of reptile species to identify extinction risks.
Tigers are the biggest cats in the world, but their populations are struggling. With only 3,200 left in the wild, there are now more living in captivity than in the wild.
Scientists identified shark DNA in pet food products, none of which listed shark meat in the ingredients.
Conservation efforts are starting to pay off for unique tree-climbing lions in Uganda's Queen Elizabeth National Park, says one conservationist.
Lemurs include a diverse group of primates, from sun-worshipping ring-tailed lemurs to the peculiar, nocturnal aye-aye.
To protect endangered black-footed ferrets from COVID-19, scientists in Colorado have injected a major captive breeding population with an experimental vaccine.
To mark Endangered Species Day, on May 15, we take a look at the most endangered species on the planet.
The Chinese paddlefish, which could grow up to 23 feet long, may be the first official extinction of 2020.
A juvenile macaque from the new group started grooming the injured monkey, then adults followed suit.
Giant pandas, known for their distinctive markings and playful personalities, are considered China's national treasure.
Teams in Washington and Canada are working together to save Scarlet, a starving 3-year-old killer whale.