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“Animals and their camouflage”
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The animal world is full of trickery and concealment
The animal world is full of trickery and concealment. To evade predators and sneak up on prey, animals must often distort their true appearance. In order to pull of these tricks, animals have evolved many types of camouflage, some of which can easily fool human eyes. "There's a wide range of different strategies that animals use, depending on the environment that they're living in," says Joanna Hall, a zoologist at the University of Bristol's Camo Lab. A common tactic is background matching, where an animal sports colors and patterns that help it blend in with its surroundings. Some animals use patches of light and dark colors to break up their outline (sharks). This is called disruptive coloration, and makes it harder for predators to see their shape. Other animals pretend to be something else entirely. They may mimic a twig, like stick insects, or masquerade as dead leaves. Then there's dazzle camouflage, which doesn't bother trying to spare a target from detection (zebra). Instead, it uses bold, colorful geometric patterns like zigzags to obscure the target's movement. Ultimately, camouflage may be in the eye of the beholder. Humans can see more colors than many of our animal relatives. "Things that would look very obvious to us aren't necessarily very obvious to the prey or predator that they're aimed at," Hall says.
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In Other News 50 African Americans Who Forever Changed Academia The story of Black History Month begins in 1915, half a century after the Thirteenth Amendment abolished slavery in the United States. That September, historian Carter G. Woodson and the prominent minister Jesse E. Moorland founded the Association for the Study of Negro Life and History (ASNLH), an organization dedicated to researching and promoting achievements by black Americans and other peoples of African descent. The group sponsored a national Negro History week in 1926, choosing the second week of February to coincide with the birthdays of Abraham Lincoln and Frederick Douglass. The event inspired schools and communities nationwide to organize local celebrations, establish history clubs and host performances and lectures. President Gerald R. Ford officially recognized Black History Month in 1976, calling upon the public to “seize the opportunity to honor the too-often neglected accomplishments of black Americans in every area of endeavor throughout our history.”
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