On March 24, 1989, just after midnight, a massive oil tanker ran aground in one of the most pristine marine environments in ...

One of the most popular explanations for why menopause evolved in some species is called the grandmother hypothesis. Essentially, older females stop having offspring of their own, and redirect energy ...

A new study shows that as humpback whale populations recover from past whaling, older males are gaining a major advantage in reproduction. Early in the recovery, breeding groups were dominated by ...

Detached orca fins scored with distinctive tooth marks suggest that killer whale cannibalism is happening — and it might ...

As humpback whales recover, older males are fathering more calves, revealing how whaling still shapes mating and competition ...

Orcas don’t have any natural predators, so how did this happen? The tooth marks, it turned out, were distinctive – they were ...

He helped fight to free the whales known as the Budd Inlet Six. It was the last time orcas were captured in United States ...

Wild orcas across four continents have repeatedly floated fish and other prey to astonished swimmers and boaters, hinting that the ocean’s top predator likes to make friends. Researchers cataloged 34 ...

In the North Pacific, orca fins with signs of cannibalism are washing up on a Russian beach. The findings suggest that killer whales occasionally participate in cannibalism, which might explain why ...

Orcas, also known as killer whales, are among the most intelligent and powerful predators in the ocean. These marine mammals ...

Being able to swim with majestic, highly intelligent, 40-foot-long, 40-ton sperm whales in the open ocean close to the lush island of Dominica is not new. In fact, there are roughly 200 resident ...

According to a new investigation, the pod attempted to protect a member who was undergoing a difficult birthing experience ...