Nephilengys malabarensis male and female showing extreme sexual dimorphism where the much smaller male is resting on the female's abdomen after escaping from female cannibalism via emasculation during copulation. | Qi Qi Lee

Nonad' Spiders Lose Gonads to Fight Better

Castrated males are better fighters because they are not weighed down by their manhood.

Published On 06/13/2012
8:00 AM EDT