The mother orca, known as Tahlequah or J35, was seen carrying the body of the deceased female calf since Wednesday, the Washington state-based Center for Whale Research said in a Facebook post.

Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

From wearing salmon hats to sinking yachts and some impressive marine tool use, orcas can really do it all. Now it seems that ...

Killer whales have been caught using seaweed to rub and groom each other in what scientists say is the first evidence of ...