This image shows the upper jaw and skull of Maiabalaena nesbittae. Whales were the first mammals to evolve baleen, and no other mammal uses any anatomical structure even remotely similar to it to ...

The baleen whales began developing the long keratin sheets that enable filter feeding. That carried on until about 23 million years ago, when their rate of skull evolution slowed to a crawl. The ...

A look at the left lateral view of the skull bones in a fin whale (Balaenoptera physalus). Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

These whales' massive heads and jaws accommodate hundreds of baleen “teeth.” Rights and other baleen-feeding whales use a comblike strainer of baleen plates and bristles to ensnare tiny ...

US experts unravelled 'a complex species puzzle' with an analysis of a Rice's whale skull, which revealed key morphological differences compared with other baleen whale species. Rice's whale ...

FORT BRAGG, CA., 1/28/25 — The bones of a 73-foot blue whale are stored in a barn in Mendocino, awaiting their permanent home ...