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 ...

Paleontologists at Mammoth Cave National Park have unearthed an ancient shark species previously unknown to science.

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 ...

The new species has been named Clavusodens mcginnisi ... big enough to swallow you – this led them to nickname it the “chipmunk shark”. The McGinnis’ nail tooth shark also belongs to ...

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 ...