3 shark species found to glow in the dark off New Zealand, pic shared

Scientists studying sharks off New Zealand have discovered that three deep-sea species glow in the dark. This is the first time bioluminescence has been documented and analysed in the kitefin shark, the blackbelly lanternshark and the southern lanternshark. With this, the kitefin shark, which can grow to 180 cm, has become the largest-known luminous vertebrate.