There were only an estimated seven red wolves left in the wild when a coalition of conservation organizations decided to sue the U.S. Fish and Wildlife Service.
The Devils Hole pupfish's natural habitat is a single water-filled hole in a cave in the Nevada desert. Its numbers at one point dwindled to just 35 animals. How does it manage to survive?
The Greensboro Science Center is celebrating the arrival of a rare pygmy hippo.
The tortoises imperiled by loss of habitat should be put on the endangered species list in four southern states, environmental groups said as they prepared to sue the U.S. government over the issue.
The ungainly yet graceful wood stork, which was on the brink of extinction in 1984, has rebounded dramatically in Florida and other Southern states, officials say.
The number of tigers in the wild has gone up dramatically since 2015 — largely because of improvements in monitoring them, but the species remains endangered.
Fishing in the Gulf of California has nearly wiped out the vaquita marina. But a new genetic analysis offers hope for the engandered porpoise: the species can make a comeback, if humans protect it.
Australia's government cited the impacts of drought, bush fires and deforestation. The koala population dropped a reported 30% from 2018 to 2021.
Biologists say newly efficient and accurate gene sequencing techniques have allowed them to fairly quickly detail full genomes and find overlooked genes in a broad range of 25 important species.