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

Animal Color Change: An Unresolved Mystery

Scientists are puzzled by the appearance of a white Iberian lynx in Spain, and howler monkeys in Costa Rica, prompting calls for more research into environmental factors such as chemical exposure.

Some animals, like chameleons, octopuses, and snowshoe hares, naturally change color, but the case of a white Iberian lynx, named Satureja, is unusual. She has lost her natural brown and orange tones, yet retained her unique black spots, a natural identifier that distinguishes one lynx from another.

No one knows the reason for this striking change in coat color, which had already been observed in another lynx previously.

Author's summary: Animals change color for unknown reasons.

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

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