Deep-sea fish giving marine experts food for thought

Deep-sea fish giving marine experts food for thought

TOYAMA, Japan - This rarely seen deep-sea fish called ''Ryugu no Tsukai'' (slender oarfish) -- or ''Messenger from the Sea God's Palace'' -- drifted ashore in Kurobe, Toyama Prefecture, in December 2009 and is now on display as a specimen at Uozu Aquarium in the same prefecture on Feb. 3, 2010.

Mysterious fish on display at aquarium in central Japan

Mysterious fish on display at aquarium in central Japan

A giant oarfish, a fish species usually living in deep tropical seas, is on display at the Niigata City Aquarium in central Japan on Feb. 9, 2016. The 3.3-meter-long fish, weighing 14.5 kilograms, was found in a fixed fishing net off Sadogashima island the previous day. Little is known about the biology of the fish with a silver white long scaleless body and a red dorsal fin. The fish is known in Japan as "Ryugu no tsukai," or "Messenger from Dragon palace," an undersea palace in Japanese folklore. (Kyodo) ==Kyodo

Mysterious fish on display at aquarium in central Japan

Mysterious fish on display at aquarium in central Japan

A giant oarfish, a fish species usually living in deep tropical seas, is on display at the Niigata City Aquarium in central Japan on Feb. 9, 2016. The 3.3-meter-long fish, weighing 14.5 kilograms, was found in a fixed fishing net off Sadogashima island the previous day. Little is known about the biology of the fish with a silver white long scaleless body and a red dorsal fin. The fish is known in Japan as "Ryugu no tsukai," or "Messenger from Dragon palace," an undersea palace in Japanese folklore. (Kyodo) ==Kyodo

Deep-sea fish giving marine experts food for thought

Deep-sea fish giving marine experts food for thought

TOYAMA, Japan - This rarely seen deep-sea fish called ''Ryugu no Tsukai'' (slender oarfish) -- or ''Messenger from the Sea God's Palace'' -- drifted ashore in Kurobe, Toyama Prefecture, in December 2009 and is now on display as a specimen at Uozu Aquarium in the same prefecture on Feb. 3, 2010. (Kyodo)