The louder the monkey the smaller the testicles

[Misfit]

http://www.sciencemag.org/news/2015/10/big-testicles-mean-softer-voice-least-howler-monkeys

Do males with bigger testicles have deeper voices? The jury is still out on humans, but if you’re a howler monkey, forget about it. A new study finds that the animals can make a lot of noise or a lot of sperm—but trying to do both just takes too much energy. The findings shed important new light on the kind of evolutionary tradeoffs animals must engage in to ensure the survival of their species.

The study is “long overdue,” says Dawn Kitchen, a physical anthropologist at Ohio State University, Columbus, who was not involved with the work. The results, she says, are “robust and clearly point to a trade-off.”

 

[vraiblonde]

I find this to be true of human males as well.

 

[black dog]

I find this to be true of human males as well.

Do you grade on a curve ?

 

[Pete]

I find this to be true of human males as well.

It is likely true

 

[frequentflier]

Is that like the bigger the truck, the smaller the penis?

 

[Gilligan]

Is that like the bigger the truck, the smaller the penis?

Hey now...

 

[Wishbone]

I'd bet Sapius and Midnight part of the test group.

 

[Restitution]

I find this to be true of human males as well.

Funny... I find it 100% true with human Females.

They all howl pretty loud and NONE of them can make sperm

 

[black dog]

Funny... I find it 100% true with human Females.

They all howl pretty loud and NONE of them can make sperm

So you can't make a vitamin, but you can make a hormone.