Crayfish enact dominance/submission rituals: study

Posted Nov 20, 2006 by KeithLDick

Interesting how they display some characteristics of animals higher up the evolutionary chain than them...
"We found that crayfish display such a complex ritual, when two males engaged in pseudocopulatory behavior to signify their dominance relationship," they wrote.
"This was followed by a reduction in aggression and an increased likelihood of the subordinate's survival."