Living With Chameleon Color

Australian chameleon grasshopper, Kosciuscola tristis

The Australian chameleon grasshopper has the unusual property of changing color. At low temperatures, males are black. At temperatures above 25C, they turn a bright blue in a process that takes about 30 minutes. If the temperature is lowered to 10C, they revert to the black color in a process that takes 5 hours. How do they change color?

The epidermal cells of the male grasshoppers contain two types of granules. The larger granules are…

Source: Living With Insects Blog

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