The full length video of his is definitely worth a watch, but if anyone's short on time, there's quite a good much shorter version focussing more on the hierarc

The full length video of his is definitely worth a watch, but if anyone's short on time, there's quite a good much shorter version focussing more on the hierarchy/alpha male side of it - https://www.youtube.com/watch?v=A4UMyTnlaMY https://www.youtube.com/watch?v=A4UMyTnlaMY