Books > Science & Mathematics > Astronomy, space & time > Cosmology & the universe
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You - A Natural History (Hardcover)
Loot Price: R548
Discovery Miles 5 480
You Save: R124
(18%)
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You - A Natural History (Hardcover)
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List price R672
Loot Price R548
Discovery Miles 5 480
You Save R124 (18%)
Expected to ship within 9 - 15 working days
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What are you? Obviously, you are a person with human ancestors that
can be plotted on a family tree, but you have other identities as
well. According to evolutionary biologists, for example, you are a
member of the species Homo sapiens. To a microbiologist, though,
you are a collection of cells, each of which has its own cellular
ancestry. A geneticist might point out that besides these
identities, you can be understood as a gene-replication machine,
which can be plotted on a "genetic tree." Finally a physicist will
give a rather different answer to the identity question: you can be
understood as a collection of atoms, each of which has a very long
history. Some have been around since the Big Bang, and others are
the result of nuclear fusion that took place within a star. Not
only that, but most of your atoms belonged to other living things
before joining you. From your atoms' point of view, then, you are
just a way station on a multibillion-year-long journey. You: A
Natural History offers a multi-disciplinary investigation of your
hyper-extended family tree, going all the way back to the Big Bang.
And while your family tree may contain surprises, your
hyper-extended history contains some truly amazing stories. As the
result of learning more about who and what you are, and about how
you came to be here, you will likely see the world around you with
fresh eyes. You will also become aware of all the one-off events
that had to take place for your existence to be possible: stars had
to explode, the earth had to be hit 4.5 billion years ago by a
planetesimal and 65 million years ago by an asteroid, microbes had
to engulf microbes, the African savanna had to undergo climate
change, and of course, any number of your direct ancestors had to
meet and mate. It is difficult, on becoming aware of just how
contingent your own existence is, not to feel very lucky to be part
of our universe.
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