The Bright Tapestry of Eyes

Word of the Day – Tapetum Lucidum

What makes some animals’ eyes glow so brightly at night? It’s because of tapetum lucida, the layer of tissue in the eyes of some vertebrates like cats, deer, raccoons, crocodiles, and owls. It enables the animal to see better at night by reflecting light back into the retina. I find it both beautiful and creepy.

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