According to
oddworld.com, Abe is 15 years old. As a worker class mudokon, his life span is 40 years. In one of the ODDCHAT meetings with some Oddworld Inhabitants folks, Abe was considered a young adult mudokon.
Munch is 2 years old, and his average life span is 18 years. Again, in that very same meeting, Munch was considered a child, almost teenager gabbit.
But this was quite a while back, and you can't really make a strict comparison to real-life life spans. mudokons can mature in their first year, or in their tenth, so you can't really tell if Abe is a child, a teenager, or an adult. The same applies to Munch.
