A new paper by Hinako Komori and two academics says a specimen she found could be one of two Japanese wolves kept at Ueno Zoo in the late 19th century.
The 17-year-old told police that he planned to kill himself after committing a murder and that he attempted to ensnare other passengers in an arson attack on a subway train.
10 things you didn t know about Hachiko, Japan s most loyal dog timeout.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from timeout.com Daily Mail and Mail on Sunday newspapers.