The sunlight zone, the twilight zone ... This is where the wide range of temperatures occur. Most marine animals live in this zone and feed off of photoplankton (the basis of the ocean food ...

The midnight zone 'gulper' with a giant mouth to swallow animals bigger than itself Why it's awesome: In addition to looking like a starry night sky, this fabulous slug belongs to the sacoglossans ...

Floating around this dark and eerie place are fascinating animals with the ability to create their own light in the murky depths. It’s called the twilight zone, and it’s so deep that sunlight ...