Professor Lars Schmitz explains the evolution of eyes in the animal kingdom

This video from Wired shows every type of eye in the animal kingdom. All kinds of eye facts are covered. For example, the video explains why some animals have horizontal pupils, while others have vertical ones. Predators often have vertical pupils to stalk their prey, while prey have horizontal pupils to gain a wide scope of vision so they can spot potential threats to their safety. — Read the rest
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