Precisely proportioned: intertidal barnacles alter penis form to suit coastal wave action.
Proc Biol Sci. 2008 May 7; 275(1638):1081-7
Neufeld CJ, Palmer AR. Proc Biol Sci. 2008 May 7; 275(1638):1081-7
All that spam apparently has it wrong. The secret to male enhancement? Location, location, location.
Barnacles are renowned in the animal kingdom for having the largest penis length for their body size (up to eight times as long as the body).
However, even within a single species, there is a striking amount of variation in width...
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