We’ve now got a slightly clearer picture thanks to the discovery of a small but mighty ancient shark species found fossilized ...

SILVER CITY, N.M.— Following a decade of advocacy from the Center for Biological Diversity and allies, the U.S. Fish and Wildlife Service today added the Peñasco least chipmunk of southeastern New ...

New Mexico’s least chipmunk and six species of Texas mussels will all receive final endangered species protections by the end of the year. Humboldt martens in California and Oregon, a Tennessee fish ...