I agree I’m with the first part of the video. Butt is not legs. It was very interesting and I am glad that part did not make me angry, lol.

In short: humans need butts (fatter cheeks) more than other animals that run on four legs due to the impact of running and that it absorbs the force allowing us to run long distances for more time without getting too tired. Ie racing.

Can’t speak for the rest as it was 50 mins. But worth the save for later, it’s Sci-show!