Showy Males Have Smaller Testicles

摘要

If you've got it, flaunt it, but a study published in Proceedings of the Royal Society B (https://bit.ly/2D8gL6C) has found that male primates that have all the attributes they need to be attractive to females are compensating for diminished assets elsewhere. Study co-author Dr Cyril Grueter of The University of Western Australia said male primates typically live in highly competitive environments where they all want to father offspring. "But not all of them can have what they want," Grueter said.