Brain

Brains of Tiny Spiders

The brain is near the head because of its proximity to the eyes. Because eating is critical to survival, animal focus their eyes and other sense organs near their eating ends.

Key Facts In This Video

  1. The first organisms on Earth didn't have heads or brains but could differentiate between right and left. 00:44

  2. The brain is near the head because of its proximity to the eyes. 02:26

Written by Curiosity Staff April 29, 2015

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