| Assembling in these dense colonies
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| Provides the social stimulation
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| That is the key to coordinating their breeding
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| Tonight’s documentary presentation
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| Will explore the short-term mating behaviour
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| Of one of the most remarkable creatures in all creation
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| The Homo sapien
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| Homo sapiens, also known as «humans»
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| Generally mate in pairs, creating the illusion
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| Of a monogamous constitution
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| But the truth is slightly more elusive
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| As is often the case as evolution advances
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| The preferred strategy depends on circumstances
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| And scientists, seeking answers
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| Look to these elaborate courtship dances
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| Males and females congregate
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| In large colonies to display their traits
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| They often fail to find long-term mates
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| But so much flesh will not go to waste
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| And it’s now that the advantages
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| Of breeding in such dense colonies become clear
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| We’ve got a short-term mating dance
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| Up in here, up in here, up in here
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| They’ve come to breed
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| We’ve got a short-term mating dance
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| Up in here, up in here, up in here
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| Note the sexual dimorphism |
| The enlarged male form is invariably caused
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| By competition for female attention
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| Charles Darwin called this «sexual selection»
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| But the females also compete
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| For male parental investment
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| For this species, like no other
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| Has a grotesquely prolonged adolescence
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| Given this fact of developmental anatomy
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| Some have questioned whether a naturally-
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| Selected short-term female mating strategy
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| Could even exist, but in fact, it’s mathematically
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| Certain, for, every short-term copulation
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| That results in conception requires the participation
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| Of one male and one female, hence
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| There must be a mutual inclination
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| And it’s now that the advantages
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| Of breeding in such dense colonies become clear
|
| We’ve got a short-term mating dance
|
| Up in here, up in here, up in here
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| Females can make their choice from many males
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| While successful males can have access
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| To lots of females
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| One theory is short-term mating
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| For long-term gain, females may appraise
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| The quality of mates from a single liaison
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| To decide whether to allow them to stay on |
| Concealed ovulation allows frequent mating
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| With little fear of conception
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| And keeps males guessing — those who excel
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| In dominance competitions enjoy short-term preference
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| Which suggests that it’s all about the father’s genetics
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| The best ones for feathering the nest
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| And providing temporary protection, may not be
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| The best ones for siring sexy sons
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| But of course, this can be dangerous
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| The scientific study of Homo sapiens
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| Is rather recent, so we can only speculate
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| On the reasons for much of their extraordinary behaviour
|
| And it’s now that the advantages
|
| Of breeding in such dense colonies become clear
|
| We’ve got a short-term mating dance
|
| Up in here, up in here, up in here
|
| They’ve come to breed
|
| We’ve got a short-term mating dance
|
| Up in here, up in here, up in here
|
| They’ve come to breed
|
| We’ve got a short-term mating dance
|
| Up in here, up in here, up in here
|
| They’ve come to breed
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| After a few days, this gigantic spawning
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| Comes to an end |