Male peacocks display their tails as they strut before females. Classify this behavior.
Then, develop an argument that this behavior is related to successful reproduction in this
species
Answers
Answer:
About 150 years ago, and “almost a lifetime” either side, Charles Darwin was beleaguered by the problem of the peacock’s tail. Just the sight of a feather, he wrote in April 1860, “makes me sick!”
The plumage of the male bird represented a hole in his theory of evolution. According to Victorian thinking, beauty was divine creation: God had designed the peacock for his own and humankind’s delight.
In, On The Origin of Species, published the previous year, Darwin had challenged the dominant theory of creationism, arguing that man had been made not in God’s image but as a result of evolution, with new species formed over generations in response to their environment.But beauty, and a supposed aesthetic sense in animals (“We must suppose [that peahens] admire [the] peacock’s tail, as much as we do,” he wrote), took Darwin the best part of his life to justify – not least because the theory he eventually landed upon went against the grain of his entire worldview.
Sexual selection was of strategic importance to Darwin, says Evelleen Richards, an honorary professor in history and philosophy of science at the University of Sydney: it was a naturalistic account for aesthetic differences between male and female animals of the same species, shoring up his defence of natural selection.
“No one had come up with this theory in quite the same way as Darwin, and yet it was built into his thinking on natural selection: sexual selection explains what natural selection cannot,” she says.
Natural selection was the “struggle for existence”, sexual selection was the “struggle for mates”. It attributed the development of plumage, courtship dances, song and other so-called “secondary sexual characteristics” to females’ choices of mates, creating a positive feedback mechanism over generations.
“A girl sees a handsome man and without observing whether his nose or his whiskers are the tenth of an inch longer or shorter than in some other man, admires his appearance and says she will marry him,” he wrote in 1868. “So I suppose with the peahen; and the tail has been increased in length merely by on the whole presenting a more gorgeous appearance.”
Explanation:
mark as brain least
Answer:
Explanation:
Courtship Behaveior
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