Fangtooth fish primarily live in the mesopelagic (twilight) and bathypelagic (midnight) zones at depths of 1,650 to 7,000 feet (500 to 2,100 meters) but have been spotted as deep as 16,000 feet ...

We examined the diel behavior among the jellyfish Periphylla periphylla in Lurefjorden, Norway in a sampling campaign and by a > 3-month continuous acoustic study. Jellyfish distribution and behavior ...

These fish live in one of the largest ecosystems on earth: the mesopelagic zone of the ocean, between 200 and 1 000 meters down. Lanternfish often group together, forming dense layers. In fact ...