It’s tiny, it’s silver and it’s at the center of a decades-long controversy over California’s water system. It’s the delta smelt. This threatened fish lives exclusively in the Sacramento-San Joaquin ...

Along the long road from American icon to endangered species and back again, the bald eagle — the national bird of the United ...

For the first time, scientists have completed an in-depth analysis of fossilized soft tissues from a plesiosaur ...

A new marine predator rivalry is emerging in the waters of Australia, shaking up the long-established hierarchy of the oceans ...