I’m not too familiar with these characters and this series, but I understand André Franquin originally created a marsupilami character as part of his work on Spirou, then took the rights with him when he left, spinning them in to a new series of the same name. After his death, other creators worked on a new volume of series, such as Batem, as seen above. [Lambiek]

Note their incredibly long tails, which are like a super-powered fifth limb. I kind of wish I had one of those, as silly as it might look.