PORTLAND, Ore. (AP) — An effort to use a fake, life-sized orca to scare off hundreds of sea lions crowding docks off the Oregon coast ended, at least temporarily, Thursday night with the fiberglass ...

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

BELLINGHAM, WA -- An Oregon community is bringing in some unusual help to try to fix their sea lion problem. They're hoping a fake killer whale from Bellingham, Washington, will do the trick. KING-TV ...

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

The U.S. House of Representatives’ Committee on Natural Resources spent nearly two and a half hours Wednesday debating the long-standing issue of the Columbia River sea lions, who are known to feast ...

Researchers identified two ecologically distinct communities of transient killer whales along the West Coast, each with unique hunting behaviors, habitats, and social networks.

PORTLAND, Ore. (AP) — When a 32-foot replica killer whale buzzed through the water to scare off hundreds of sea lions piled on Oregon docks, onlookers cheered. And then the dummy orca went belly-up.