Crocodile with Articulated Jaw

What you're getting

This crocodile's got a working jaw, which is rather the point when you're dealing with one of Earth's oldest creatures. We're talking 200 million years old — they were knocking about when dinosaurs roamed the planet.

Here's something properly odd: crocodiles actually swallow stones when they're lounging by the water's edge. Sounds mental, but there's method to it. The stones help their digestion, keep them buoyant in the water, and let them dive deeper. Nature's a bit mad sometimes, isn't it.