Add Yahoo as a preferred source to see more of our stories on Google. A pod of northern resident killer whales travels together. The same population of orcas was recently seen hunting with Pacific ...

Add Yahoo as a preferred source to see more of our stories on Google. Killer Whales off the coast of Baja California Sur in the Sea of Cortez, Mexico. Kirk Hewlett, Getty Images A pod of killer whales ...

In the cold coastal waters of the North Pacific, a rare alliance is challenging what scientists thought they knew about marine predators. Orcas and dolphins have been filmed coordinating their ...

Scientists filmed the way killer whales hunt together. These images show one of the animals turning toward the other after a tail slap delivers a shock to herring. Paolo Domenici et al., Current ...

Great white sharks have long ruled the open ocean, but a new and highly organized rival is beginning to reshape that balance of power. Along coastlines where great whites once hunted with little ...

Killer Whales off the coast of Baja California Sur in the Sea of Cortez, Mexico. Kirk Hewlett, Getty Images A pod of killer whales chased a young great white shark, immobilized it and then bit its ...

With all the splashing, it was hard to tell what was happening under water. As the orcas surfaced to take a breath, dolphins were darting around their heads, but the water was so murky that the ...