Japanese Sea Lions became extinct in the 1950s. They had a body length up to 2.5 m (8.2 ft) and they weighed up to 450 kgs (990 lbs).
Males were dark grey in colour whereas females were pale grey and much smaller than males.
Japanese Sea Lions were found in the sea of Japan. They came ashore to breed on flat sandy beaches and to rest in caves. A map showing their approximate former range is shown on the right.
Japanese Sea Lions fed upon a variety of fish.
Reproduction in Japanese Sea Lions was thought to be similar to the California Sea Lion.
Humans were known predators of Japanese Sea Lions.
Japanese Sea Lions had no subspecies
New Zealand Sea Lion
South American Sea Lion
Steller Sea Lion
Galapagos Sea Lion
California Sea Lion
Australian Sea Lion