The US National Park Service announced the identification of a new species of ancient shark, Clavusodens mcginnisi, ...

The eastern chipmunk spends most of the winter in its burrow. This inactive phase extends from about mid November until early March - late April, with local snow depth and temperatures influencing the ...

These species are between 3 and 4 inches long ... Researchers nicknamed it the “chipmunk shark,” for its “chisel-like front teeth and crushing back teeth,” along with its small size ...

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 ...