Decent Comics with a Jungle setting are not easy to find... I feel like their heyday has both sadly come and gone long ago.
But I have to say by far the best Jungle based Comic I've ever seen is easily Kenya by Rodolphe and Leo, which I read the first Volume of over the weekend. Amazing Art and a super intriguing premise for a storyline.
This series doesn't even sadly have a Wiki entry at the moment, but it's really worth looking up and checking out.
I also read some of the old British 60's Jungle comic Kelly's Eye, which had great Artwork, but I couldn't really get into the story.