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Last update at 26 · 09 · by milo
‧‧‧ One of 7754Two planets collide: there exist millions of asteroids, many thought to be the shattered remnants of planetesimals, bodies within the young Sun's solar nebula that never grew large enough to become planets.
The branches of contemporary science associated with the study of human nature include anthropology, sociology, sociobiology, and psychology.
Human nature
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