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All kittens start their lives off with blue eyes. Melanin production in their iris hasn’t yet begun, but by 4-6 weeks, their true eye color will begin to emerge. By 12-16 weeks, your cat will ...

Living animals illustrate every possible intermediate ... is festooned with up to 100 brilliant blue eyes. Each contains a mirrored layer that acts as a focusing lens while doubling the chance ...

From eyes the size of a dinner plate to 360-degree vision, these animals boast extraordinarily efficient ways of seeing ... The eyes of Arctic reindeer change colour with the seasons, from gold in the ...

When disturbed, they flash their bulging red eyes and reveal their huge, webbed orange feet and bright blue-and-yellow flanks ... Many of the animals that eat red-eyed tree frogs are nocturnal ...