Brain is sexy
"The brains a really good indicator of fitness because its growth depends on at least half of the genes that humans have," he says. "A brain, after all, is very complex, very sensitive to genetic mutations, and costs a lot of energy to run."
"So if and when we discover the extraterrestrials, you shouldnt be surprised to find that they are slick talkers, good musicians and -- unlike their Hollywood ciphers -- able to tell a decent joke." (Källa)
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