Scientists discovered that river otter droppings contain large numbers of parasites that infect the animals’ prey, indicating that otters may play a significant role in shaping local food webs.

New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off ...

The black caiman is one of the Amazon’s apex predators, a stealthy hunter that preys on mammals using ambush tactics and ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are ...

Tourists aboard a cruise to Antarctica had a front row seat to the cruel realities of nature recently, as they watched a pod ...

Want to experience this story in a different medium? Check out the related documentary or Science Quickly podcast episode. Like many people who visit San Juan Island, I came here for the orcas. This ...

With all the splashing, it was hard to tell what was happening under water. As the orcas surfaced to take a breath, dolphins were darting around their heads, but the water was so murky that the ...

Killer whales and dolphins have been working together to hunt salmon in the northern Pacific Ocean, an unexpected finding that further reveals the complex social lives of marine mammals. Video cameras ...

Otter shows how to eat fish the right way. New disclosures show Trump bought bonds affected by government policy changes The Standoff That Brought the Big Ten’s $2.4 Billion Deal to a Screeching Halt ...

Orcas regularly surface for air, with average dive times lasting between three and five minutes. (Lily Roby/Courthouse News Service) FRIDAY HARBOR, Wash. (CN) — Blue and silver mist splashes in the ...