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Advanced Model of the Useless Machine

Published 1 day ago in Other. Submitted by sux2bu

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Giant Rat trap

Published 1 day ago in Awesome. Submitted by Judge-Jake

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How do birds learn to sing?

Published 2 days ago in Animals. Submitted by manro

Lesson by Partha P. Mitra, animation by TED-Ed.

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nightingale

Published 2 days ago in Animals. Submitted by yorfo