Mountain Sheep (Ovis canadensis) Metapopulation in Southern California. Shaded areas indicate mountain ranges with resident populations, arrows indicate documented intermountain movements, the dotted lines show fenced highways (after Bleich et al.
Otaku (ããã/ãªã¿ã¯) is a Japanese term for people with obsessive interests, commonly the anime and manga fandom. Its contemporary usage originated with Akio Nakamori's 1983 essay in Manga Burikko. Otaku may be used as a pejorative; its negativity stems from the stereotypical view of otaku and the media's reporting on Tsutomu Miyazaki, The Otaku Murderer, in 1989.
Someone obsessed with trains and railways, sometimes to an unhealthy degree, otaku-like. This is a type especially common in British and Japanese fictional works, which makes sense since both nations in real life have a high population of such enthusiasts.