The legendary killer whale known as “Old Thom” is back. A group on a tuna fishing expedition off Massachusetts over the weekend spotted the well-known orca — leading to plenty of excitement from the ...

Orcas in the Gulf of California off the coast of Mexico have been spotted hunting young great white sharks by flipping them over to incapacitate them before eating their energy-filled liver, new ...

Neal J. Riley is a digital producer for CBS Boston. He has been with WBZ-TV since 2014. His work has appeared in The Boston Globe and The San Francisco Chronicle. Neal is a graduate of Boston ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...