Why do I have 10 times more draw calls than objects in my scene ?

Hi,
My scene only contains about 70 objects but for some reason, I have between 800 and 1000 draw calls per frame.
When I go into the frame debugger, I can see a long list of the meshes being rendered and some of them correspond to the same objects so I guess my meshes are being rendered multiple times ?
I only have 1 Camera and all these objects are under the same parent
Any idea ?
Thanks,