This image shows the upper jaw and skull of Maiabalaena ... on inferences from fossils and studies of fetal-whale development in the womb to piece together clues about how baleen evolved.

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 ... findings based on ...

The researchers analyzed the largest-ever dataset of 3D scans from 88 living whale species and 113 fossil ... and baleen whales, Mysticeti. Each lineage developed distinct skull specializations ...

A road-widening project has unearthed four new baleen whales species in Southern California’s Laguna Canyon. The fossil specimens, at 17 to 19 million years old, are the most recently evolved toothed ...

In 2021, researchers identified a new whale species and are now scrambling to save their natural habitat By Danna Staaf This adult Rice's whale skull at ... only resident baleen whale in the ...