One of these bad boys can collect 200 wood and 50 thatch from one tree. If you upgrade the damage enough times it will turn into a chainsaw. Can take down 2 carnos easily. I have 2 of them and they harvest wood dam well. Knocking them out is easy but make sure you have like 50 narcs and 25 mejoberries they don’t get hungry very often. If you don’t need wood just out them next to your base as defense.
Seems to harvest more wood per hit than a mammoth, but the mammoth has better weight reduction, so just get your hairy-elephant to follow your splinter-mouse. Now admire the open plain where a proud forest once stood and laugh uncomfortably.