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Why Wombats Poop Cubes
3m
Scientists solve a mammal poop mystery: Why do wombats have cube-shaped feces?
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Video description: Two astronomers argue that the farthest objects in the Kuiper Belt are being pushed and pulled by the gravity of Planet Nine, a giant planet orbiting over 10 times farther from the Sun than Neptune. If they find it, it’ll be the first real expansion of the Sun’s planetary album in 170 years.
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