Keiko, the killer whale that starred in the film Free Willy, has died in Norway at the age of 27, 18 months after he was returned to the wild. Full Story

Scientists have made the extraordinary discovery in Chile of a hidden nursery where blue whales go in large numbers to rear their young and to feed. Full Story

A species of whale that ignores most man-made noises – including passing boats – is attracted to sounds like the sirens used by emergency services. Full Story

US scientists say monitoring the North Atlantic climate can predict the birth rate of an endangered species of whale. Full Story

Over 100 pilot whales and 10 dolphins have been found dead after beaching themselves on Australia’s island state of Tasmania. Full Story

Driftnets are killing tens of thousands of dolphins in the Mediterranean despite bans on the fishing method by the European Union and United Nations, a major environmental group said yesterday.

Police in Japan, one of the world’s biggest consumers of whale meat, have arrested two foreign environmental activists for trying to free whales penned in a bay, a police spokesman said yesterday.

Japanese scientists have identified a new species of living baleen whale after examining the skeletons of several specimens caught in the 1970s. Full Stor

A previously unidentified species of whale has been recorded by researchers. The creature is a close cousin of the blue whale and has been given the formal scientific name Balaenoptera omurai, reports the journal Nature.

Seagrass, a vital but largely overlooked component of the world’s oceans, is being destroyed by ignorance and inaction, threatening millions of people and many species of marine animals, according to a new report published today.