Big brain means small testes in bats
NewScientist: “The brainier male bats are, the smaller their testicles, according to a new study. Researchers suggest the correlation exists because both organs require a lot of energy to grow and maintain, leading individual species to find the optimum balance.
The analysis of 334 species of bat found that in species where the females were promiscuous, the males had evolved larger testes but had relatively small brains. In species, where the females were monogamous, the situation was reversed. Male fidelity appeared to have no influence over testes or brain size.
Both brain tissue and sperm cells require a lot of metabolic energy to produce and maintain. The different species appear to have evolved a preference for developing one organ more than the other, presumably determined by which will help them produce more offspring.”
niqkita
I like an even balance myself ~:)
indeed, that was a truly fascinating tidbit livvy!!!
Lola
me, too.
Fuschia Faery
giggling…
olivia
Yes indeed. I am most attracted to males with big, buldging brains.
Cait
If the same were true of humans, wouldn’t that have some interesting sociological and psychological implications. Wow.
Lola
I wonder how this correlates to human males…
Hans
Ha,ha…this is a good one. So, through evolution the bats have gotten smart enough to get a date and score (through a bigger brain), but maybe nothing comes of it because of their tiny nuts. I wonder what the perfect combination of brain and nut size is.