Orcas in the Gulf of California off the coast of Mexico have been spotted hunting young great white sharks by flipping them ...

Toothed whales use sound to find their way around, detect objects, and catch fish. They can investigate their environment by making clicking sounds, and then decoding the "echoic return signal" ...

Marino Ballena National Park gears up for the height of humpback whale watching, drawing visitors to see these massive creatures in action. The park ranks among the top spots worldwide for this ...

For the last five-plus years, killer whales have been ramming – and in some cases sinking – expensive yachts, sailboats and fishing boats in the crystalline waters off the coasts of Spain, Portugal, ...

Sightings of the marine mammal captivate the public and baffle scientists Benjamin Cassidy The orca known as “Old Thom” swims in front of researchers in the Bay of Fundy. Gregory Rec / Portland Press ...