Walrus

The walrus is a very amazing creature. It has some muscles in its whiskers - that's how it digs to get some of the clams. And it has an ice-busting head. And those tusks - they are good for dragging around the sea floor so it's easier to get to the ground. And here's another amazing feature: if a group of walruses is in a bad blizzard and far away from land, it doesn't need to hover in the water using its flippers. It's neck is inflatable. It pumps up its neck and then it can hover without using any flipper power. And here's how they get the clams out of the shells: they suck them! That's why they have those really strange lips. Well, unless you notice, sometimes it can be a little hard to notice.

(photo from tburg.k12.ny.us)