New Extinct Walrus Species Discovered in North Atlantic

Ontocetus posti reveals convergent evolution with modern walruses, highlighting significant environmental impacts on marine mammals.

Paleontologists identified Ontocetus posti from fossils in the UK and Belgium.
The species shares feeding adaptations with modern walruses, indicating convergent evolution.
Ontocetus posti's anatomy suggests it was adapted to suction-feeding.
The species migrated from the North Pacific to the Atlantic via the Central American Seaway.
Global cooling in the Late Pliocene likely led to the extinction of Ontocetus posti.