Evolutionary ‘trade-off’ between size of throat and testes discovered in howler monkeys furthers Darwin’s theory of sexual selection and corresponds to mating systems: males with larger throats often have exclusive access to females, while those with larger testes share mates.
http://www.sciencedaily.com/releases/2015/10/151022124522.htm
Calls vs. balls: Monkeys with more impressive roars produce less sperm
22 octubre 2015
Volver