These Slugs See with Their Brains

The video explores how slugs and other animals perceive light using different organs, focusing on slugs' ability to detect light through their brains. It discusses a 2019 study where researchers found that even without eyes, slugs can avoid light using light-sensitive proteins called opsins. This trait is shared among various species, suggesting it may be an ancient evolutionary trait predating eyes. The study of slugs provides insights into the evolution of vision.

How do slugs navigate in response to light, and what does this suggest about their evolutionary traits?

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In what ways do the findings about slugs contribute to our understanding of the evolution of vision?

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