Going gray is something most people worry about at some point in their lives. Curiously, birds do not share the same problem, as their plumage always remains a vibrant collage of colors until they die. Scientists have now discovered how this is possible, at least in terms of the Eurasian Jay: It generates its patterns by manipulating the growth of many tiny structures on its feathers, instead of using dyes or pigments that would fade over time.
The recently discovered ninja lanternshark, 30-50 centimetres can cloak itself by giving off a bluish light that effectively renders it invisible. The inky-black fish already has the camouflage of darkness in the deepsea levels. But it's also covered in photophores — tiny dots that can emit light, cloaking the fish in a bluish glow and making it invisible to prey or predators below
Deep in a Slovenian cave, a blind salamander – once thought to be a dragon’s offspring – dwells in darkness. Thought to live for more than a century, these creatures reproduce just once or twice every decade, and this particular female has been caught in the act of laying around 60 eggs.