In a peculiar change to their normal behavior, humpback whales have been seen congregating en masse.
Three elusive True's beaked whales have been captured on camera during an expedition to the Azores.
Volunteers have been struggling to refloat hundreds of whales after two consecutive mass strandings.
A mysterious metallic sound recorded by researchers could actually be a never-before-heard whale call.
A 105-year-old killer whale is still going strong after being sighted off the coast of Washington State.
Scientists have identified a whole new species of whale following years of stories from local fishermen.
Migaloo, one of only four known white humpbacks in existence, has surfaced once again near Australia.
Researchers have managed to record the first ever footage of one of the world's most elusive whales.
The Risso's dolphin calf was spotted alongside its mother by whale watchers off the coast of California.
Scientists have identified the genes that enable these aquatic mammals to live in excess of 200 years.
Researchers seeking the lake's famous monster have found evidence that beluga whales may be living there.
The disappearance of the world's biggest shark may have enabled whales to grow to huge sizes.
A conservation success story off the coast of California has seen blue whales thriving in recent years.
An extremely rare encounter with an albino humpback whale called Migaloo has been caught on camera.
The remains of whale species dating back up to 9 million years have been unearthed at a site in Chile.
The remains of at least three whales have mysteriously washed up on different beaches across Ghana.
A new documentary will attempt to track down a whale communicating at an anomalous frequency.
Military exercises involving sonar could account for cases of mass dolphin and whale strandings.
Campaigners have revealed that a rare species of Icelandic whale is being used in Japanese dog treats.
The pygmy whale is the last living relative of a group of whales that died out millions of years ago.