A committee of the U.S. House of Representatives spent more than two hours debating the Pacific Northwest’s sea lion problem.

Like corn kernels in slowly heating oil, the orca sightings began sparse and unpredictable. But at some imperceptible moment, ...

Using drones and cameras attached to the orcas, scientists have finally been able to learn something about the interaction ...

Off the coast of British Columbia, dolphins lead killer whales to salmon and earn their share of lunch, a new study reveals.

For the first time ever, a unique cooperative hunting arrangement between dolphins and orcas has been documented. Researchers ...

The U.S. House Water, Wildlife, and Fisheries Subcommittee held a hearing on sea lion predation on salmon and the effectiveness of killing the mammals to slow down the trend.

Researchers from Dalhousie University were trying to study how northern resident orcas find salmon to eat, but they ended up ...

Great white sharks have long ruled the open ocean, but a new and highly organized rival is beginning to reshape that balance ...

The massive, intelligent Orca (Orcinus orca) is the world's largest apex predator. Learn how its pack-hunting tactics allow ...

We’re all familiar with La Jolla’s sea lions, harbor seals, orcas, garibaldi and seabirds. But in this series of stories ...

The ocean is full of mighty hunters. Two of the most feared are the shark and the orca (killer whale). Sharks are ancient, solitary predators. They have rows of razor-sharp teeth, whereas orcas are ...