‘Chewing muscles were no longer needed.' By Laura Baisas | Published Apr 9, 2024 1:02 PM EDT Belugas and other toothed whales use echolocation to see and sense the world around them. Deposit ...

New research indicates that females in certain whale species have evolved to have significantly longer lifespans in order to ...

"Toothed whales have undergone significant degenerations and adaptations to their aquatic lifestyle," said Hayate Takeuchi, a Ph.D. student at Hokkaido University's Hayakawa Lab and first author ...

Some whales that experience menopause can live nearly 40 years longer than others of similar size, according to a new study that sheds more light on the biology of ageing.

Step forward—or, perhaps, swim forward—the beluga. Like all other toothed whales, these little Arctic-dwelling cetaceans have ...

A female humpback whale named Twain has been known to researchers since the 1980s when she was spotted in Hawaii. Twain ...

Understandably, it left spectators in awe - and horror. Pygmy sperm whales belong to the toothed whale family, alongside dolphins and orcas; despite their name, they are not true sperm whales but ...

For instance, this is a blue whale vocalization. Baleen whales like blues make sound with a larynx, kinda like we do. Toothed whales, on the other hand or other fin. (whales squealing) Like orcas ...

Genetic analysis finds evidence suggesting that acoustic fat bodies in the heads of toothed whales were once the muscles and bone marrow of the jaw. Genetic analysis finds evidence suggesting that ...

Dolphins and other toothed whales–or Odontocetes–use their heads to create sounds that help them communicate, navigate, and hunt in their murky marine world. These sometimes vocal-fry-like ...

More information: Hayate Takeuchi et al, A tradeoff evolution between acoustic fat bodies and skull muscles in toothed whales, Gene (2024). DOI: 10.1016/j.gene.2024.148167 Provided by Hokkaido ...