What anatomical feature distinguishes Waimanu from modern penguins regarding their mouth?

Answer

The presence of teeth

Unlike modern penguins that swallow fish and krill whole using specialized smooth bills and tongues, Waimanu possessed teeth. These teeth likely served to grasp slippery prey, indicating a feeding strategy that differed significantly from the suction-feeding mechanisms observed in contemporary penguin species.

What anatomical feature distinguishes Waimanu from modern penguins regarding their mouth?
animalextinctfossilWaimanuCetecean