Why We Yawn; Effects of Birth Order | Robert Sapolsky Father-Offspring Interviews

Episode 129 of Father-Offspring Interviews. Topics in this episode include how birth order actually influences personality, sexual orientation, and IQ (among other traits), and the leading theories on why we and other species yawn, along with how yawns just might be extremely sexy. Social & Websites Question Submission: https://ha66meqrpqz.typeform.com/sapolsky Instagram: https://www.instagram.com/robert.sapolsky 00:00 Intro 00:00:14 Question 1 (The effect of birth order) 00:20:17 Question 2 (Yawning)