Early baleen whales were fearsome predators with wicked teeth, but lost them entirely
Baleen, one surprising fossil suggests, evolved from gums rather than teeth.
Baleen, one surprising fossil suggests, evolved from gums rather than teeth.
Marine mammals are a strange bunch, and the sea is a very unforgiving environment.
The ocean will be less without them.
At some point, mysticetes decided to drop the hook and fish with a net. How did this all happen?