"Orcas often share food with each other—it's a prosocial activity and a way that they build relationships with each other.

Killer whales are one of the most intelligent animals; only humans have a larger brain relative to their body size, according ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

Ireland’s water quality suffers from high nitrate levels, warns EPA; Social Democrats call for urgent government action.

Following extensive cleaning and conservation, these are among the first major items to be reinstated as part of the ...

A 13-day survey conducted in the Clarion-Clipperton Zone (CCZ) found a large variety of marine life living in the region, ...

Birdwatch Ireland identifies 73 key seabird areas, urging government action for protection and conservation amid rising ...

Combined with their recent fad for sinking yachts, killer whales are starting to look like the Robin Hoods of the sea.

In 1985, on the southeastern shore of Oahu, an unusual marine birth at Sea Life Park startled researchers and captured the imagination of biologists worldwide. From the mating of two distinctly ...

Passengers on False Creek Ferries were treated to an incredible surprise in Vancouver this past fall when a group of orcas surfaced right next to the boats. Folks captured video of the breached killer ...

The false killer whale (Pseudorca crassidens) is a large member of the dolphin family, known for its social nature and widespread presence in tropical and subtropical oceans. Despite its name, this ...

The false killer whale, an impressive dolphin measuring about six meters (20 feet) in length with a charcoal-black color, is a close relative of the orca (killer whale).