WMG / Curious George

George is a rare manx monkey.
So there you go - the reason he doesn't have a tail like other monkeys.
  • Alternatively, George got too curious and accidentally had it lopped off.

George is actually just a child who is pretending to be a monkey.
It would explain why everyone calls him a monkey when he's actually a chimpanzee. A kid wouldn't even know the difference, and probably wouldn't know to correct you if you said, "Oh, you're pretending to be a monkey". Also, when chimpanzees mature, they can also be very dangerous to others. If George is actually just a child, it would explain why he's able to run around without ever getting into trouble or taken away by the local animal services. And any particularly crazy happenings can probably be explained by a particularly overzealous bout of long imagining (on George's part).