A group of Thai researchers discovered a new species of tarantula with a distinctive electric blue color.
About the species: The tarantula, named Chilobrachys natanicharum, is one of the world’s rarest, according to its discoverers. 
Lead author Dr. Narin Chomphuphuang, an entomologist, said the spider’s color does not come from blue pigments, but its hair, which incorporates “nanostructures that manipulate light to create this striking blue appearance.”
How they discovered it: After discovering another tarantula that resided in bamboo stalks, the researchers, along with wildlife YouTuber JoCho Sippawat, embarked on an expedition to Phang-Nga province in southern Thailand. As they set out to learn more about tarantula diversity and distribution, they found C. natanicharum inhabiting hollow trees in a mangrove forest.