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

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

The Orca, or killer whale, is one of the ocean’s most formidable predators. Though often called whales, Orcas actually belong to the dolphin family,yet their power, intelligence, and hunting abilities ...

Researchers examining 20 years of data on orca sightings have discovered a worrying trend linked to the receding ice, ...

NewsCenter 5 spoke to some Massachusetts-based experts as well as local groups opposing the construction of wind turbines in Massachusetts, to hear their thoughts on Trump's comments.