Alliterative
Alliterative
@alliterative·47.8K subscribers·358 videos

Why Did Two Sexes Evolve?

Posted

February 22, 2017

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YouTube Description

as posted by the channel

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!

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.

------Acknowledgements and other links: ------

Art & Design

➢ Channel Art & Character DesignCaro Waro

➢ Intro & Outro AnimationCristina de Manuel

Audio

➢ SoundtrackCryoSleepKitten

➢ Intro & OutroThastor

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THE GEAR I HAVE USED:

➢ Camera

Canon 650D (US)

Canon 700D (UK)

➢ Lenses

Canon 50mm F1.8 (UK)

Opteka 0.2x Fisheye + Macro attachment (US)

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Canon 50mm F1.8 (UK)

Opteka 0.2x Fisheye + Macro attachment (UK)

➢ Microphone

SmartLav+ (US)

Tascam DR40 External Recorder

--

SmartLav+ (UK)

Tascam DR40 External Recorder

Guests & Subjects Covered

The Hurst-Hamilton Hypothesis TheAsher LeeksAlan GrafenIns DawsonChannel ArtCharacter Design Caro WaroOutro Animation CristinaManuel Audio

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