Salmon Can Turn on Night Vision. Why Can’t We?

The video explores how salmon and other animals can see in the dark by adjusting their vision, unlike humans. It explains the biological and physical processes involved, focusing on the role of enzymes and vitamin A in altering pigments. The video also discusses experiments to enhance human vision using vitamin A2, highlighting the differences in vision across species.

Discuss how the ability of salmon to see in different wavelengths benefits them in their environment.

What experiment did scientists conduct in the 1940s to explore night vision in humans?