Shako was a very early 2000AD series about a killer polar bear. It had a couple of stories that ran in 1977. The main one told the story of how the bear swallowed a top-secret capsule it found at a crash site, the US government's subsequent attempts to retrieve the capsule and the bear's fight for survival. The story originally began in Prog 20 and ran for 16 episodes before finishing in Prog 35. It replaced Flesh Book One, the first of the original series to finish.