Lobsters have an unusual way of communicating. Instead of making noises or gestures, they squirt pee at each other.
They have two bladders that are located either side of the head. Just under their eyes, they have small urine release nozzles which they use to squirt the substance at each other.
The squirted urine contains a chemical message that can communicate various things, including simple recognition, aggression, and attraction.
Also, did you know that lobsters, like houseflies, taste with their feet?