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

Other foods important to Adirondack chipmunks include fungi (particularly false truffles), invertebrates, and even small vertebrates. Chipmunks occasionally kill and eat birds, especially nestlings.

Researchers nicknamed it the “chipmunk shark,” for its “chisel-like front teeth and crushing back teeth,” along with its small size, according to the news release. The teeth were collected ...