Animal Farm

And here's another animal – the Disgruntled Userodont. Disgruntled with life, it wanders through forests and fields, and as soon as it spots a flock of grazing and chirping Floodosauruses in a clearing, it immediately tries to punish them. And it punishes them in a very simple, although unexpected way: it sits on them with its massive… uh, figure. The flock is gone, individual survivors scatter in different directions, and it becomes (though not for very long) less disgruntled and sheds crocodile tears.