An orca has been spotted wearing a salmon hat for the first time since 1987. On October 25, a viral photo of a Southern Resident orca at Point No Point, Washington, was spotted with a salmon on ...

Orca populations are declining for several reasons ... so I spend a lot of time thinking about this stuff. We know the effects that man-made noise can have on whales and dolphins.

An orca who made headlines in 2018 after she carried her dead calf on her head for more than two weeks and a distance of 1,000 miles has given birth again, according to the Center for Whale Research.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Tahlequah, the ...