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\nWhy Are There As Many Males As Females?\n

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\n\nPublisher:\n\nBe Smart\n\n\n
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\nIn almost every animal species on Earth, equal numbers of males and females are conceived. Why is that? Especially in populations like lions or elephant seals, where most males don’t get to mate? That’s survival of the laziest, not...\nIn almost every animal species on Earth, equal numbers of males and females are conceived. Why is that? Especially in populations like lions or elephant seals, where most males don’t get to mate? That’s survival of the laziest, not survival of the fittest. It turns out that in most cases, an equal balance of the sexes is the evolutionary stable strategy. From Charles Darwin to Ronald Fisher to W.D. Hamilton to Richard Dawkins, the question of why there’s as many males as females has fascinated biologists. Today, we’ll explain why that is the way it is.\n
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Resource Details

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Educator Rating
Not yet Rated
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Media Length
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5:20
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Grade
12th - Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nIt's Okay to Be Smart\n\n
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Date
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2018
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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nature, evolution, reproduction, species, males, females, genes, chromosomes, populations, fitness, genetics, natural selection, animal species, chance, population, offspring, mutation
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Additional Tags

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science, pbs digital studios, pbs, joe hanson, it's okay to be smart, its okay to be smart, it's ok to be smart, its ok to be smart, public broadcasting service, documentary, elephant seals, sex ratio, biology, sex, richard dawkins, fisher's principle, wd hamilton, ess, stable strategy, selfish gene, darwin, equal ratio, male offspring, female, change, results, male
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Classroom Considerations

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Video is ad-free
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