And they’ve likely been at it for centuries.
When a Tourist Got Lost in the Amazon Rainforest, Monkeys Came to the Rescue.
[DIGEST: AAAS, New York Times, Motherboard] New research suggests that, as with humans, some female monkeys find deep male voices more attractive than their higher-pitched brethren. In a cruel kick in the pants, this research also suggests that – at least with howler monkeys – the deeper the voice, the smaller the testicles. In a study … Continued