My Gym Partner's a Monkey (2005– ) full episodes watch cartoons online.
Synopsis: Adam Lyon got registered at the wrong school after a typo changing “Lyon” to “Lion” sends him to the all-animal Charles Darwin Middle School. Local zoo and aquarium kids are his classmates: gorillas, giraffes, snakes, birds, bats and fish. Adam quickly befriends Jake Spidermonkey his gym partner, hence the show's title and they team up to make it through middle school together.
Creators: Tim Cahill, Julie McNally Cahill
Stars: Tom Kenny, Nika Futterman, Grey Griffin
More information: IMDB, Wikipedia