Lecture: The Human Body as an Evolutionary Patchwork

This is a superb lecture from a working scientist (approx. 1 hr 30 min). Dr. Alan Walker comes across as a creative, hardworking, and humble man. His demeanour invites contemplation, coaxes thought, and really helps you listen to what he's describing. Don't miss the Q&A session at the end - his responses to audience's questions show his immense knowledge and experience, and once again, his willingness to share what he knows in a friendly and non-threatening manner stands out.

Listen and you will learn why human testes are outside the body (not just the lower temperature explanation) and why men have nipples. I found his opinion that we are Homo Erectus (that the species didn't go extinct) to be a blast of fresh air. He thinks taxonomy is overcrowded! Occam's Razor, anyone?

Be prepared for a bunch of evolutionary biology jargon - this is a man who does not talk down to his audience - but he never gets incomprehensible. Watch in awe as he rigorously warns the audience whenever the subject matter strays into speculative or controversial territory - and tells you exactly what the debate is so you're not lost.

This is as close as you can get to a religious experience.