AQUATIC ANIMALS

Sea turtle hatchlings have a natural instinct to crawl over towards the brightest object on the beach immediately after hatching. Usually, this would be the ocean, lit by the reflection of the moon and the stars. But due to ALAN (artificial lighting at night), the hatchlings crawl towards the opposite side (towards buildings and roads) and end up getting lost. Sea turtles that do survive are not provided with the darkness they need to rest on the beach; thus, their lives are also threatened. 

Deep sea organisms use light to communicate, the cookie-cutter shark has a bioluminescent stomach to disguise its own shadow, a particular species of dragonfish can emit and perceive red light, and a specific species of octopuses have evolved their suckers into lamps. But fishermen use ALAN as a way to attract fish onto the surface, this disrupts the silent and sacred communication that takes place under the sea.