15 Human Technologies Inspired by Plants and Animals: How Biomimicry Is Shaping the Future

Direct comparison of the Kingfisher's beak and the Bullet Train nose cone.

10. Cat Eye Reflective Technology — Nighttime Safety

The retro-reflective layer (tapetum lucidum) in a cat’s eye inspired the invention of “Cat’s Eye” road reflectors to enhance nighttime visibility for drivers.

If you’ve ever seen a cat’s eyes glow at night, you’ve witnessed the tapetum lucidum—a reflective layer behind the retina that bounces light back through the eye.

This inspired the invention of roadside reflectors, commonly known as “cat’s eyes.”

They are used for:

  • Highway lane markings
  • Bicycle reflectors
  • Running gear visibility
  • LED safety devices

This simple yet life-saving technology drastically improves nighttime visibility.