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Black Widow Spiders

Black widow spiders are color-coded to deter predators without tipping off prey

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. Ref. Source 3w

Image from MorgueFile public domain.

Black Widow Spiders

Can someone tell me more about black widow spiders is a good topic without delay so maybe and seperate fact from fiction.