Since marine mammals were federally protected, the only course of action for federal and state officials was to find a nonlethal way to keep the sea lions away from the locks. Steve knew the task ...

A show-stopping sea creature dazzled boaters off the coast of California, leaving onlookers “blown away.” On July 4, boaters ...

Fifty thousand years ago, North America's landscapes were alive with an astonishing array of enormous creatures. Massive ...