Are these strange animals the stuff of nightmares or aliens from outer space? Turns out, they're real undersea animals! Find out how deep sea creatures use bizarre and fascinating adaptations to survive in their harsh environments in this Level 3 Reader. Journey through the depths of the ocean into the dark Midnight Zone and discover the mysterious animals that live there. Learn about how their bodies make their own light or adapt to living in low-light areas, how they hunt, what they eat, and how they keep themselves safe from predators.