d***z
发帖数: 136 | 1 Utah researcher: The louder the howler monkey, the smaller its testicles
http://www.sltrib.com/home/3090829-155/utah-researcher-the-loud
A new University of Utah study shows monkeys make a trade-off between a
powerful howl and increased sperm production.
A University of Utah researcher co-authored a study released Thursday that
reveals size does indeed matter — at least when it comes to howler monkey
testicles.
Primatologist Leslie Knapp, professor and chair of the university's
Department of Anthropology, found that the smaller a howler monkey's
testicles are, the deeper and louder his mating calls. | g****t
发帖数: 4493 | | m*****e
发帖数: 10963 | 3 卵大没有卵用。。。要鸡巴大。。。
叔小时候有个玩伴卵长的大到像个气球，鸡鸡都看不到，，，
医生说叫疝气，隐睾。。。 |
|
