Lob­sters uri­nate from their faces

World of Animals - - The Lobster Love Story Myth -

It’s part of the mat­ing rit­ual

Lob­sters wee from their faces. To be pre­cise, they ex­crete urine from nephro­pores, or green glands, at the base of their an­ten­nae, close to their eyes. Liq­uid is squirted from a glan­du­lar sac that’s con­nected to the crea­ture’s mus­cu­lar blad­der lo­cated un­der the brain via a coiled tube, and it can be sprayed an in­cred­i­ble seven body lengths ahead of them. They can elim­i­nate waste via their gills, di­ges­tive glands and skin too.

As well as flush­ing tox­ins from the body, lob­sters’ urine is rich in pheromones, which are used for com­mu­ni­ca­tion, whether ward­ing off ri­vals or se­duc­ing a mate. It’s thought fe­males waft urine into the male’s den to re­lax him and get him in the mood be­fore en­ter­ing his home.

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