By Spoorthy Raman Rhythmic clicks, grunts and roars fill the Año Nuevo Island Reserve in California, home to a large breeding ...

Related: New piranha-like fish with 'human teeth' and Eye of Sauron ... These unusual creatures live in the mesopelagic zone ...

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 ...

The “doomsday fish” can grow to be up to 30 feet long and typically resides down to 1,000 meters in the mesopelagic zone of the ocean, according to Ocean Conservancy, making a sighting of the ...

A new study highlights there could be up to four times more fish in the mesopelagic, or ‘twilight’, zone of the Southern Ocean than previously thought. Scientists at British Antarctic Survey ...