Matsudodon: Otterly Perplexing Cryptomundo

Guest blogger Brent Swancer continues his observations of cryptids featured among the legends and lore of Japan. Here he offers "A Tale of Mystery Pinnipeds, Muskrats and Otters." With images. Also at Cryptomundo today: Loren Coleman asks Pythons in the Sewers? And UK cryptozoologist Neil Arnold offers London Leopards?