Our species emerged as a result of a mind-bending number of random events and mutations, but it may also have been inevitable that humans, or something like us, would walk the Earth.
How did humans get to be so much fatter than our closest primate relatives, despite sharing 99% of the same DNA? A new study suggests that part of the answer may have to do with an ancient molecular shift in how DNA is packaged inside fat cells, which curbed our body’s ability to turn ‘bad’ white fat into ‘good’ brown fat.
Researcher: “By 2.6 million years ago, they were beginning to understand the relationship between the folk physics of where to strike something, and how hard to hit it, and what angles to select,” … Well, you have to start somewhere.
Carol Ward: It seems to be a behavior that was present in some of the earliest members of our branch of the family tree. It represented what was really the initial major adaptive change from any apelike creature that came before us.