Why are some tarantulas so vividly colored? Scientists have puzzled over why these large, hairy spiders, active primarily during the evening and at night-time, would sport such vibrant blue and green colouration—especially as they were long thought to be unable to differentiate between colors, let alone possess true color vision.
Click here for original story, Scientists discover why tarantulas come in vivid blues and greens
Source: Phys.org