The smallest species of whale tricks its predators by gushing red gallons of red fluid into the water when under attack ...

ORCAs, the ultimate ocean predators, are capable of hunting the largest animals on Earth, including blue whales and elephant ...

Watch as killer whales attack a boat off the coast of Portugal. Matt Johnston was steering his boat near Sines, Portugal, when a pack of killer whales slammed into his boat — and actually tore ...

Attacks by orcas, or killer whales, on boats in the Strait of Gibraltar are increasing. But why are these seemingly peaceful creatures becoming dangerous.

Image via TanKr/Shutterstock One yacht owner had a terrifying ordeal at sea when a pod of killer whales attacked and ended up sinking his boat to the bottom of the ocean. The orcas sank the ...

In a new sign of toolmaking in marine mammals, orcas in the Pacific Northwest were recorded rubbing stalks of kelp against ...

Moose (Alces alces) are excellent swimmers. Moose that live along the Pacific coast of Alaska and Canada frequently swim from ...

The adult male killer whale Moctezuma and five other killer whales (two adult females, two juveniles, one calf), in the vicinity of the juvenile whale shark, measuring around 6 meters.

Orcas have long been revered as the ocean's strongest predators. In honor of World Orca Day, we're diving into why.

Drone footage has captured killer whales breaking off stalks of kelp and rubbing the pieces on other orcas, a rare case of ...

The encounter, observed by snorkelers in Norway, “involved repeated episodes of gentle, face-to-face oral contact.” ...

The discovery — published June 23 in Current Biology — constitutes the “first evidence” recorded of tool-making by marine ...