A rare sighting of critically endangered southern resident killer whales off the Oregon coast offers a glimpse of a ...

Timo Dersch had a close call with a humpback whale while freediving with orcas in the waters surrounding Norway ...

It’s not clear whether the orca is a true albino or its white coloring was caused by another medical condition.

False killer whales - which are in fact a dolphin - are typically deep-sea dwellers, and are one of the rarest marine mammals ...

Despite their name, killer whales — or orcas — are not ... octopuses and other prey in the pitch-black waters. Occasionally, these whales have been found covered in strange, circular scars ...

Despite their name, they hardly resemble killer whales and are distinguished by their sleek, black or grey bodies and rounded heads, according to Whale and Dolphin Conservation, a non-profit.

An orca, or killer whale, was spotted by an aerial survey team off the coast of Kitty Hawk in the Outer Banks last week.

A young pygmy killer whale — a rare type of dolphin — was recently rescued after becoming stranded on a shore in South America. The incident occurred on March 18 in Buxton, Guyana — a small town ...