what are 3 differences between true seals and sea lions?
Sea lions (left) are brown, bark loudly, "walk" on land using their large flippers and have visible ear flaps. Seals have small flippers, wriggle on their bellies on land, and lack visible ear flaps. ... Secondly, sea lions have small flaps for outer ears. The "earless" or "true" seals lack external ears altogether.