A wall proposed by President Donald Trump to block immigrants from crossing the U.S.-Mexico border may also harm the wildlife whose homes straddle both countries, biologists told Live Science.
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.
The most comprehensive review of primate populations ever conducted finds that 60 percent of our closest biological relatives are threatened with extinction.
Colo, the world's oldest known gorilla and the first gorilla born in captivity in the U.S., has died peacefully in her sleep at the age of 60.
The rusty patched bumblebee is the first bumblebee species listed as endangered in the United States.
Giraffe populations have taken a nose dive, leading to their new designation as "threatened with extinction," by the International Union for Conservation of Nature.
The Bronx Zoo recently earned a place in the Guinness World Records for the most origami elephants -- 78,654 to be precise.
During the public debut of the 23 cubs born this year at the Chengdu Research Base of Giant Panda Breeding in China, one of the black-and-white cuties took a nosedive off the stage.
Grauer's gorillas in the Democratic Republic of Congo are now considered critically endangered, with just 3,800 individuals left in the wild, down from 17,000.
For the first time, researchers have managed to breed an extremely mysterious spider known as the Montserrat tarantula in captivity.
Most of the world's large creatures could face extinction by 2100 if drastic conservation measures aren't taken, conservationists say.
Red wolves and eastern wolves aren't separate species; they're really just hybrids of gray wolves and coyotes, according to the research.
No candy for ferrets, but the FWS is giving peanut butter with the vaccine to prairie dogs, the main prey of ferrets.
The addax is a species of antelope that lives in the Sahara. It is critically endangered, and there may be only three left in the wild.