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The Science of Sex – with Sally Le Page

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The Royal Institution

Sally Le Page traverses the weird and wonderful world of evolution and reproduction, with regular musical interludes along the way. This talk includes references to sex and has some mild language.
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Are all males cheats? What do women want? And why should they do all the choosing anyway? What’s the largest number of children born to any woman? Join Sally Le Page on a light-hearted romp through the bizarre jungle of animal (and human) sex lives. She leads the audience through the evolutionary adventure of sex, from sexual conflict and the male frogs that sometimes hug a little too hard, to the supportive bush cricket spouses that feed and care for their mates. Sally explores mind controlling sperm, penguin prostitution, and how jealousy can affect sperm production.

This talk was filmed at Ri Lates at the Royal Institution on 24 October 2014.

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46 thoughts on “The Science of Sex – with Sally Le Page”

  2. The Disney generation has reached the Royal Institution. Her communication style seems intended for 5 year old kids. At 11:57, you can see an audience member escaping the theater during one of the awful "musical interludes".

  5. She shows one ovum and one admittedly very tiny, in comparison, sperm. But men are not cheats in that respect. After all every man makes millions of sperm every day.

  6. Unlike all the killjoys below, I think she tried to make the talk interesting and did pretty well. She's clearly very enamoured of her own studies. Science really does make for a very interesting job.

  8. 3:50 But who is REALLY the cheat? The female produces one single egg every 28 days or so. The man has to produce MILLIONS of sperm EVERY DAY. I'd say by mass along the guy is the larger producer.

  11. the anatomy of the human penis also evolved for sperm competition. bigger penises are favored because they have a better chance of depositing semen in the uterus and the glans was evolved to scrape competing sperm out of the vagina

  14. This was an interesting talk.
    Though I do agree with some sentiments about the energy being tedious, I can see how it would be a good change of pace in a lecture hall/ seminar environment where the norm is a constant barrage of information with little time to absorb. The judgement of this, not so important point, it that we (the viewers) are looking at this in the comfort of our homes, where as the attendees of the talk are in lecture hall listening with little other distractions. Cut Dr Le Page some slack, she did a great job of alleviating any tedium that may have occurred due to a constant stream of information.

  21. THIS IS HOW THIS TALK SOUNDED TO ME!

    Man, my ears are ringing. I had to stop. I couldn't finish it. Sorry. Only if she calmed down and presented it in a normal voice, it might've been watchable.

    3:10 Also what was the point of picking on that guy in the audience? Can you imagine if some male host called out a female member of the audience and called her a "slut" to substantiate his "scientific reasoning" — can you imagine the amount of holy hell he'll have to dodge afterwards?

  25. This is absolutely not to the standards of the Royal Institute. There is 30 seconds of science and 24 minutes of gobbledegook cheerful chitter chatter. Come on… who gave this wannabe his/her permission to bother me me with this. Don't take me wrong, I see almost all posts and loved them al, until now.

  30. The mating habits of insects and anneals are by no means to be a comparison to man, sense man is capable of abstract thought and the highest form of life on the planet, nether does evolution define our development scientifically in comparison to monkeys. We're hear, and the monkeys are hear with non of the pro magnum in between. We as a human race are bound by law and discipline. Morality and structure are important to our social development, but; you Sally Le Page are a propagator of recklessness. Like a moth to a flame you will fly. You will lead all those who will follow you to their destruction. I have seen so many like you mouth off over the years until there was silence, as they were slowly dying; having received the full recompense for there behavior. No one had to do anything to them, as they were the victims of there own hands. You are just a new crop of bad weeds, as those who forget the past, you are distant to repeat there mistakes.

  31. Very good presentation donot bother about the non critical, dumbfound comments. I have read the selfish gene and you have touched on the cheat part of the males in the initial chapters for which I am delighted to hear.

  32. Horrible presentation. Can someone do the same subject without an actual serious presentation please. 2 minutes of science and 22 minutes impossible to sit through.

  36. Men …. "once he's inseminated the eggs, there's not really much point to him…" , Sally Le Page on 24/10/2014 at The Royal Institution. Never before have I ever felt so under-valued 😉 Great presentation, Sally, very funny and insightful in equal measure.

  40. Many species including humans and bonobos put in half the work in rasing the child thats why were patially monogomous. Because ment typically put in half the work and labor post birth

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