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.
On Ark Mobile, they will even build dams on land far away from water and without a fence/pen. I used an argy to carry wild ones from a distant area to an area near my base. I now have over 20 wild ones wandering around making dams all over.
Phenomenal tames. Excellent wood gatherers and I would put them up against the Bronto or Steg for berry gathering, especially for smaller tribes. They don't gather as much per attack as either of the above, but they are orders of magnitude faster. Can zip around spamming attack and be at you weight limit in berries in no time.
Built our base on The Center right next to a pond with our trough just out of range. Tamed a couple of the beavers (named Sharon Stone and Wynonna because I dare you to come up with two better beaver names) for berry and wood gathering. Still get spawns and 3 to 5 dams. Never ending supply of cementing paste, silica pearls, rare flowers, mushrooms and more wood than we know what to do with.