Sea lions on the California coast are displaying strange behavior likely due to a harmful algae bloom impacting the region, ...

The young Bigg's, or transient, orca was first spotted in the eastern Juan de Fuca Strait in Washington state on March 20.

A newborn Bigg's orca calf spotted last week is the descendent of a killer whale that was once captured and held at SeaWorld.

The birth of one of Australia’s rarest marine predators has injected critical genetic diversity into the zoo’s captive ...