One moment they"re blending in, the next they"re flaunting a new shade—chameleons really know how to color the world. But every May 9, these masters of disguise can"t hide from the spotlight. International Chameleon Day celebrates their color-shifting skills, zippy tongues, and wild adaptations. Chameleons change colors to help regulate their body temperature, attract mates, and communicate with others. Specialized skin cells, including iridophores, reflect light to create dazzling displays. Some species turn bright to signal aggression, while others adopt subdued tones to avoid attention.
International Chameleon Day
Today in History
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Commemorating the life of a famous railroad conductor
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Duomo Santa Maria del Fiore, Florence
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Kjell Henriksen Observatory
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Walton Lighthouse, Santa Cruz, California
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Thomas Edison s bright idea
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National Park Service anniversary
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World Otter Day
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Labor Day parade in 1915 Chicago
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Diwali
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The largest American bison around
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Presidents Day
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Mapping courage in the Seventh Ward
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Travel Sunday: On the Ganges in Varanasi, India
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Why’s it called a spelling ‘bee,’ anyhow?
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Infrared Jupiter, erupting Io
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Pearl Harbor Day
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Misool, Raja Ampat Islands, Indonesia
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Looking down on the Otter
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Love on ice
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At the gates of the ksar
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Crescent-tail bigeye fish, Great Barrier Reef, Australia
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The puffin-rabbit connection
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Barn owl, England
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Hispanic Heritage Month
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These patterns tell a story
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Independence Day
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J.R.R. Tolkien Day
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World Bamboo Day
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Przewalskis horses
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Festivus
Bing Wallpaper Gallery

