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Dr Karim Vahed of the University of Derby displays a male Tuberous bushcricket. Dr Karim Vahed has discovered that this type of bushcricket has the biggest testicles in relation to body mass of any creature on the globe. Platycleis affinis has testes which make up 14% of its whole male body mass. This beats a species of fruit fly (Drosophila bifurca), thought to be the previous record holder for the biggest testes as a percentage of male body mass, at 10.6%. ()
-, )). 14 % . 10.6% ))
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