Why Did Two Sexes Evolve?
Have you ever wondered why there are two sexes? As in, why do we require sexes for sex? The origin of the sexes is actually a very interesting question in theoretical biology, and in today's video I'll be covering my favourite hypothesis for the evolution of the sexes: The Hurst-Hamilton Hypothesis.
The video is structured to cover:
A simplistic hypothesis for the evolution of the sexes
The hypothesis I believe to explain the origin of the sexes
Addressing two of its main criticisms
Alongside answering the question as to why there are male and females, this video is also part of a wider evolution themed collaboration - you can enjoy the whole playlist here!
http://bit.ly/EvolutionVideos
Also, my apologies for each time I say "theory" instead of "hypothesis" - a rookie error!
Special thanks to Asher Leeks and Alan Grafen for resolving some key doubts in this video.
Inés Dawson is a PhD student and animal flight scientist at the University of Oxford.
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