@nautiluslive: #Lanternsharks, like the juvenile recorded here while exploring the #PalauNationalMarineSanctuary., are #bioluminescent in a special pattern called aposematic bioluminescence. Similar to how birds or butterflies use coloration as a deterrent signal to predators, scientists speculate that this glowing, especially featuring the large spines around the animal's body, helps them avoid predators. #NautilusLive #marinebiology #shark #deepseashark