Dating back to the 1880s, it was once even seen in Tokyo. The population suddenly shrank in the 1930s and nearly vanished. Since then, it has only been spotted in 1964 in the Seto Inland Sea, and in t
Lutra nippon
Skeleton of Japanese river otter. Exhibit in the National Museum of Nature and Science, Tokyo.
The Mustelidae are a diverse family of carnivoran mammals, including weasels, badgers, otters, sea otters, polecats, martens, grisons and wolverines. Otherwise known as mustelids, they form the larges