Please Pass the Lobster Piss...I mean Bisque

Quite a while back (I think it was February) I read a really great book about lobsters called The Secret Life of Lobsters by Trevor Corson. There were too many interesting things to write a summary here, so I thought I might just take one of the quirky things and expound upon that.

American lobsters are configured in such a way that when they urinate it doesn't stream out from their posterior areas as in most species, but rather shoots out in front of their face through two openings located just under their antennas. These openings are connected to two sacks (the equivalent of our bladder) that are located inside the head. Apparently they hold large volumes (relative to the lobsters over all size) of urine. The antenna wave the urine out ahead of the lobster in a cloud, to be tasted/smelled by other rival lobsters in enough time for them to retreat. The author says it's the same as us shouting "Is there anybody here? Because I've got a Swiss-army knife and I know how to use it." It's an announcement and a warning all wrapped into one solid stream of pee. Each time fighting lobsters attack each other they simultaneously release a squirt of urine at their opponent. It quite literally becomes a pissing contest.
Apparently lobster pee is also used as a signal to attract the opposite sex. In this case the urine is saying "I've got plenty of sperm, and I am one hot dude. Lets get you out of that shell and then make 3,000 to 5,000 babies." If the female likes what she smells (and apparently females can smell who of the males has won the most fights) she approaches the male and pees on him in affirmation. This takes the place of a nod, or a "thumbs up" we humans might do to convey our agreement. They then pee on each other several times in excitemnet before the female begins her molt and the actual mating occurs.
It's strange to think lobsters can communicate better by peeing on each other than some of us humans can through actual talking, but there you have it. They can, and do, and it works out great. They know who's boss, who's ready to get laid, and who to stay away from. That's a heck of a lot more than I know about my neighbors. Lobsters are awesome!