Killer whales, also known as orcas, are easily recognized by their stunning black and white appearance. These huge animals ...

The debate over the ocean’s greatest predator often pits the orca against the great white shark, with many siding with the ...

Orcas, or killer whales, are deadly and beautiful apex predators. Here's when a top economist says the US will see the most ...

A Hawaii-based fisherman has shared stunning footage of his brief encounter with two “massive” orcas this week, along with an apology for cussing.

WAIKIKI (KHON) — A rare encounter was caught on camera off the Big Island when two massive killer whales — also known as orcas — swam right up to a local fisherman’s boat. It started as a regular ...

Killer whales, also known as orcas, are not just powerful hunters or majestic swimmers. They may also be attempting to connect with humans in a surprisingly thoughtful way—by sharing their food.

Killer whales are known for exceptional intelligence, displaying complex social structures and sophisticated communication. New research provides fresh evidence for this, documenting how these ...

Discover how killer whales craft kelp tools for grooming, showcasing unique social behaviors and cultural traits in marine mammals.

Killer whales off the west coast of North America have been spotted making and using tools to groom each other, the first time such behaviour has been recorded in marine mammals.

The whales use quick body movements to tear pieces of bull kelp for use as tools, perhaps the first known toolmaking by a marine mammal.

A new study reveals killer whales fashion kelp into tools and use them to groom each other, a possible first for marine mammals and animal cooperation.

Killer whales have been seen detaching lengths of seaweed and using them to massage each other—the first evidence of tool-making by marine mammals. The whales bite off the end of a kelp stalk ...