While more than a million humans run marathons voluntarily each year, most animals we consider excellent runners — antelopes and cheetahs, for example — are built for speed, not endurance. Even nature’s best animal distance runners — such as horses and dogs — will run similar distances only if forced to do so, and the startling evidence is that humans are better at it, Lieberman said.

Modern humans and their immediate ancestors such as Homo erectus sport several adaptations that make humans, instead of some ferocious, furry, or fleet creature, the animal world’s best distance runners.

Unfortunately, here is the situation,” Donovan wrote in an e-mail to Sam on Aug. 16, 2004, and proceeded to list the necessary changes.

“Hooker in car blow job — we need to show much less of the critical mouth to penis area.

“Hooker Stand Up Blow Job — this needs to be removed or implied.

“Sex with girlfriend — essentially this is all beyond the bounds of M and 18 ratings, and needs to be removed or implied.

“Sex shop workers need to have slightly more nipple coverage particularly for the States.

“Key to her heart spanking date scene needs to be removed, as it constitutes sexualized violence which is a huge problem.

“Blow job in back room of dealer’s house is cool however.