Intestinal length: The length of the human intestines is much more like that of herbivorous animals than that of carnivores. Humans tend to have intestines that are 10 to 11 times their body length. How did humans end up eating meat? Scientists believe that it was climate change that originally caused the shift towards meat eating. Even once our early ancestors began eating meat, they primarily scavenged the leftovers of larger predators instead of hunting for themselves.
