One of the largest aquariums in the world, Osaka’s Kaiyukan is also very well curated. The impressive attraction focuses on the marine ecosystem of the Pacific Ocean, hosting 30,000 creatures ...

The Osaka Aquarium Kaiyukan in Japan decided to celebrate its sea otter's milestone 20th birthday on Tuesday with a stream of pictures of the venerable old lady.

There are tons of reasons to visit Osaka Aquarium Kaiyukan in the city’s Minato Ward, not to mention one or two that weigh a ton.

This aquarium has whales, sharks, manta rays, and thousands of marine mammals. Walking through the glass tunnels feels like stepping into the ocean itself. Photo courtesy: Osaka Aquarium Kaiyukan ...

Sunshine Aquarium was the first in Tokyo to do so, in 1984. ... Suma Aqualife Park Kobe in 1987; Osaka Aquarium Kaiyukan in 1990; and Yokohama Hakkeijima Sea Paradise in 1993. ...

Kai the male whale shark, estimated to have been 9 to 10 years old, about 6 meters in length and 1.5 metric tons in weight, had been exhibited at Osaka Aquarium Kaiyukan in the city of Osaka, and ...

The 5.5-meter-long male whale shark, "Kai," who is estimated to be 8 to 9 years old, has been kept at Osaka Aquarium Kaiyukan in the city's Minato Ward for three years.