A lone orca beloved by locals, tourists and guides has made his way back to the Bay of Fundy this year, just as he has for 20 ...

Experts say the whales seem to learn to play with boats from a young age. "Believe me: if they wanted to sink the boats, they ...

The coastguard advised sailors in Galicia to remain in the port after receiving reports of whales ramming the rudders of boats in far shallower waters than usual.

A heartbreaking video shows a pod of orcas hunting a humpback whale calf in the Sea of Cortés off the coast of California.

Tracking programs have started to piece together a new picture of the ocean’s most fearsome predator. Here’s what we know ...

Dolphins flee from shipping traffic and recreational watercraft. Learn how these noises disrupt their pods and hunting grounds.

Killer whales have attacked two boats off the coast of Spain, prompting a warning from scientists to avoid them - one crew ...

A bottlenose dolphin is seen "bow riding," or swimming just in front of a humpback whale, potentially getting a boost from the wave created by the larger mammal. Roving Media via Griffith University ...

A group of killer whales were spotted off the coast of California, boaters said. Getty Images/iStockphoto A group of orcas was spotted off the coast of California, leaving boaters “thrilled,” ...

Whale researcher Jared Towers said his sadness was profound as he witnessed an orca he had documented over the years die and slip into the depths last weekend. Towers was called out to Johnstone ...