Black Widows: Obvious to Predators, Stealthy to Prey
Tuesday, March 1, 2016 - 11:40
in Biology & Nature
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 sends a warning signal that some animals can see but others cannot, finds a Duke University study. Considered some of the most venomous spiders […]