Human eyesight is exceptionally sharp compared to many animals. For example, our visual acuity is about seven times stronger than that of a cat, and 40 to 60 times sharper than the vision of rats or goldfish.
Insects like flies and mosquitoes experience the world through eyes that are far less sharp — hundreds of times less precise than human vision.
However, these animals don’t need perfect eyesight to thrive, as other creatures rely on other specialized senses to navigate their environments.
While cats see less detail than humans, their vision excels in low light, giving them an edge during nighttime hunts. Rats and goldfish use touch and smell to detect food and avoid obstacles, compensating for their poor eyesight.
Meanwhile, insects like flies rely on compound eyes, which give them a wide field of vision and help detect movement with incredible speed — critical for survival. These adaptations remind us that although human sight may seem superior in clarity, other creatures possess sensory abilities uniquely suited to their environments.
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