If you’re in lakes with a lot of rocks, watch out for these spiky creatures like this one here. This creature has 7 tentacles (one of which is also a tail) that have a lot of spikes on them. This creature uses its tentacles for attacking, and grabbing things. This creature will plant its self as it moves to help it move in the water. The spikes on this creature will fall off, and regrow.

(Thank you to, skitterskitter for the idea)