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Probably not Dave The Barbarian. The big strong guy was the main character in that one, and the little one in the leopard print tunic was a monkey. ;)
(Somewhere in the distance an angry voice screams I'M NOT A MONKEY!)
Pitt and Kantrop?
George of the Jungle, maybe?
Could it be Flint the Time Detective?
Kind of a long shot but possibly the Tak and the Power of Juju series from Nickelodeon?
ogu & mampato?
it is hard to see in the dark when your eyes are blinded by the light
I remember it was like 2006 or 2005 it was a cartoon where they were like cavemen but nothing like the Flintstones. One of the charters was like a buff suffer dude and the main character was a little boy where a leopard print tarp