Chinese scientists claim to have discovered more than 30 new deep-sea species living in underwater 'mountains'.China claims to have discovered more than 30 new deep sea creatures by using an underwater drone to explore of the darkest corners of the ocean.

Among the unusual never-before-seen species shown in video footage is a 'ratfish' which has big ears and - despite having eyes - is blind, said to use a lateral line to sense the change of current.

Later in the clip, a group of bright red deep sea shrimps move together across the illuminated and baited drone area and a cutthroat eel attempts to rip the meat away.

The species live in seamounts - ridges caused by underwater 'mountains' - as deep down as 5,000 metres below the ocean's surface in dark and cold climates.