| in Did You Know Facts
When they crave blood or sex, lobsters notably urinate out of their faces.
![lobster, crabs, clams, mussels](https://assets.shortpedia.com/uploads/2022/12/05/1670242439.webp?tr=w-1200,h-600,cm-pad_resize,bg-F3F3F3)
The greenish-brown dots next to the antennae are lobsters' antennal glands, and it's common practice for them to urinate at one another during conflict or courtship. A male enters a pheromonal state of calm when the female, who initiates contact, repeatedly urinates in his shelter.