Interesting question Ethan. Since I am an
evolutionary biologist I will give you an answer
from my perspective.
About 4.5 billion years ago the earth formed
at a particularly important distance from the sun;
enough heat, but not too hot. Over another billion
years, the atmosphere of the earth changed
dramatically and then incredibly (and lucky for
us) life came to be and started to evolve. The
first life forms weren't much to look at, just
molecules in a prehistoric ocean that were able to
make copies of themselves. Some molecules were
better at making copies of themselves than others
and over a long long long time this competition
led to the formation of more complex life forms.
Eventually a life form made its way onto land.
About 500 million years ago the first animals
with backbones emerged (vertebrates) from which we
are descended. Humans have been in existence
for about 200,000 years; that's a tiny
fraction of how long the earth has been around.
Our position in the universe and the
beautiful process of evolution is how we
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