From the white Iberian lynx in Spain to the howler monkeys of Costa Rica: Why do animals change color?

Animal Color Change: An Unsolved Mystery

Scientists are puzzled by the sudden change in coat color of a female Iberian lynx, known as Satureja, in the Spanish province of Jaén.

While some animals, such as chameleons, octopuses, cuttlefish, and snowshoe hares, are known to change color naturally, Satureja's loss of her natural brown and orange tones is a surprise.

She has retained the black spots unique to each lynx, which serve as a kind of natural identification.

No one knows the reason for this striking change in coat color.

Author's summary: Animals mysteriously change color.

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EL PAÍS English EL PAÍS English — 2025-11-05