Whales

A new study has revealed the exact origin of the Pacific Ocean's mysterious "biotwang" noises, which were first detected by underwater surveys near the Mariana Trench in 2014.

Drone captures footage of a humpback whale missing its tail fluke — an injury suspected to be from long-term entanglement in fishing gear.

A beaked whale that recently washed up dead on a New Zealand beach likely belongs to the world's rarest cetacean species. If confirmed, researchers could dissect the species for the very first time.

Japan has announced plans to add fin whales — the second-largest animal on Earth — to its list of commercial whaling species, which currently includes Bryde's, sei and minke whales.

A pod of sperm whales flung their poop at unsuspecting orcas to avoid a fatal attack.

Beluga whales appear to change the shape of their heads during encounters with one another in what scientists believe is a form of visual communication among this highly social species.

Toothed whales appear to have lengthened their lifespan without lengthening their reproductive life so they can help care for their grandchildren, a new study suggests.

New research using artificial intelligence reveals that a decline in the North Pacific population of humpback whales between 2012 and 2021 coincided with the strongest marine heat wave recorded globally.

Photographs taken off Maui, Hawaii, show the first documented case of a male humpback whale sexually penetrating another male, with the latter appearing injured and covered in parasites.

Climate change appears to be causing North Atlantic right whales to get smaller, and it's making them have fewer babies.