Some people say that because it can carry more wood than the beaver, it's already better than it. Well yes, but actually no. The Beaver still gathers more wood than the mammoth can even if the mammoth can carry a lot more. It's a lot slower to farm wood with a mammoth. Solution? Take the beaver and put the mammoth on follow so you can take both of them for gathering wood. Easy 30k wood per 10 minutes.