With its shiny blue hue, this electric blue tarantula named Chilobrachys natanicharum surely mesmerizes those that gaze upon it, since it's quite rare to see anything in nature that would be akin to something like phosphorescence. Now, a study had given this explanation as to why the tarantula would have such a pigmentation:
According to the study, the secret behind the electric blue tarantula’s wild color comes from the unique structure of their hair and not from a presence of blue pigment. Their hair incorporates nanostructures that manipulate the light shining on it to create the blue appearance. Their hair can also display a more violet hue depending on the light, which creates an iridescent effect.
Learn more about the electric blue tarantula on Pop Sci.
(Video credit: JoCho Sippawat/Pensoft Publishers)