Rotifer Jaws in Action

Here's another rotifer found in the scum of Calvin's fish tank (taken at 400x). At the beginning, we see the rotifer just swimming around looking for food. We then jump to a clip of it eating. You can see the cilia at the mouth moving around to sweep particles into the mouth, and then you can see the jaws chomping it up! The jaws are in the middle of the animal, and look a bit like the mouth of a sabre-tooth cat.