That year, 88 sea otters were housed in aquariums in Japan. But the number plummeted to 30 in 2011 and to 10 in 2017. The last sea otter in the Tokyo metropolitan area died at the Aqua World ...

OARAI, Ibaraki Prefecture--A sand tiger shark was born at the Aqua World Ibaraki Prefectural Oarai Aquarium here, the first successful breeding of the species in Japan. Only four other aquariums ...

An aquarium in Japan is using cardboard cutouts of visitors to cheer up its lonely resident sunfish, who stopped eating after the building closed to real-life visitors. Kaikyokan Aquarium in ...

SHIMONOSEKI: A lonely ocean sunfish in a Japanese aquarium, which seemed to be missing its human visitors and caretakers during the facility’s closure, has found a surprising source of comfort.