Have you heard of the mesopelagic zone... - Ocean Conservancy

Twilight Zone inhabitants are fascinating! The Ocean’s twilight zone is 200 - 1,000 meters (about 650 to 3,300 feet) below the surface, just beyond where sunlight can reach. Also known as the midwater or mesopelagic, there is more fish biomass in this depth zone than you’ll find in the rest of the ocean combined! Our friendly deep-sea experts suspect this mesmerizing creature is a lobate ctenophore, a type of comb jelly also called a sea gooseberry. These invisible invertebrates are ubiquitous t