Reproduction: A Courting To Nature

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to describe the behavior of these large, social birds.

At the same time he did not forget that all romance - animal and human - is
tied intimately to natural selection. Natural selection brought on the
evolution of males and females during prehistoric epochs when environmental
change was making life difficult for single-sex species such as bacteria
and algae. Generally, these reproduced by splitting into identical copies
of themselves. New generations were thus no better than old ones at
surviving in an altered world. With the emergence of the sexes, however,
youngsters acquired the qualities of two parents. This meant that they
were different from both - different and perhaps better at coping with
tough problems of survival. At the same time, nature had to furnish a new
set of instincts which would make "parents" out of such unreflective
entities as mollusks and jellyfish..

The peacock's splendid feathers, the firefly's flash, the humpback whale's
resounding bellow - ...

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