Forum > Birds In The News > Black Widow Spiders Are Color-coded To Deter Predators Without Tipping Off Prey

Webmaster Posted 29-Feb-2016 15:31
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From Science Daily on 29-Feb-2016 15:31

Secret codes and hidden messages aren't just for computer security experts or kids passing notes in class -- animals use them too. The telltale red hourglass of the black widow spider appears brighter and more contrasting to birds than to insects, finds a new study. The red-and-black color combination sends a 'beware!' signal to predators without scaring off their prey.


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