Thursday, September 16, 2010

The Hermaphrodite: Peppermint shrimp

Yes - It's true. The Zoologger website is reporting that the Peppermint Shrimp, "...start out as one sex, and then transform into hermaphrodites". The website also states, " first matures as a male, and sometimes turns into a hermaphrodite with both male and female sexual organs".

Story Continues...


  1. All-male shrimps are more successful at finding mates than hermaphrodites acting as males – probably because they can put more effort into trying to find a mate – and they will delay changing sex if there are hermaphrodites present.

    In fact, the decision whether or not to change is determined by the size of the social group. To maximise their chances of one day being able to mate, shrimp living on their own always turn into hermaphrodites, even though they end up growing more slowly because of the energy spent on making eggs.

    It seems that the shrimp are playing an advanced version of "chicken" called the hermaphrodite's dilemma, in which everyone tries to stay male as long as possible and hopes that someone else will jump first and turn hermaphrodite.

    ^ smh @ these three paragraphs.

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