Experts speculate that orcas may be playing when they ram boats so hard they sink—a phenomenon that’s mostly been documented in this region.

Long baleen whale mothers are more likely to have female calves than males, according to a new study led by the University of ...

Guests of the Mamawata Surf Retreat in Costa Rica witnessed an adult humpback whale and her calf breaching from the water while kayaking in the ocean ...

Kayakers in Costa Rica had the best view of an unexpected show in the middle of the ocean when a humpback whale and its calf breached yards away from them.

Blue whales and whale sharks, though both giants of the ocean and filter feeders, differ significantly. Blue whales, massive marine mammals, consume k ...

Regarded as some of the largest animals in our oceans, which creature is bigger: the giant squid vs blue whale? While blue whales are well-studied, very little is known about giant squid. But just how ...

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,” ...

Community members gather for a rare, up-close view of the young marine mammal before it is relocated south of town. A necropsy team is seeking answers on the cause of death The necropsy team examines ...