For more than a century, killer whales have been understood to be just one worldwide species, Orcinus orca, with many types. But now, after decades of work, scientists have determined the ...

Large ships entering and exiting Puget Sound in Washington have been asked to slow down in order to reduce the amount of sound irritating endangered orca whales in the area.

In what’s becoming a less frequent — though still stunning — event, all three family groups of the region’s endangered Southern Resident Killer Whales recently visited the Puget Sound ...

Dolphins, porpoises, killer whales, sperm whales and other toothed whales produce an array of sounds - to find prey employing a sonar-like system called echolocation and to communicate with other ...

A new baby orca born to J Pod is a ray of hope for the endangered southern resident killer whales. J63 was spotted by Mark Malleson, field biologist for the Center for Whale Research, on April 6.

A baby orca has been spotted with the Puget Sound population of killer whales. The new arrival -- scientists don't know yet if it's male or female -- brings the number of orcas up to 86. The ...

Governor Jay Inslee and the Quiet Sound program celebrated the progress made in protecting orcas in Puget Sound at the Seattle Aquarium Friday.

A plan announced last week to return Lolita, a killer whale held captive for more than a half-century, to her home waters in Washington's Puget Sound thrilled those who have long advocated for her ...