Random Trivia Generator - Which is true about the eyesight of butterflies: they're colorblind, they're blind and rely on smell, they see as well as humans, or they have extreme color vision?

Which is true about the eyesight of butterflies: they're colorblind, they're blind and rely on smell, they see as well as humans, or they have extreme color vision?

SCIENCE

They have extreme color vision -- Humans have trichromatic retinas, meaning we see blue, green, and red cones, but most species of butterflies have retinas with six or more photoreceptor classes.

SCIENCE

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