Giant monkey man
Keep your distance, do not touch
They will beat you dead.

I mostly find them in the redwood biome.

Note: It is advisable to cut the tail to be able to beat..

Was with my direwolf and I got jumped by about 5 terror birds, this dude came up from nowhere and knocked the sh*t out of those terror birds, but when I looked back, he was gone. He saved my and my tame's life, RIP Sasquatch you handsome devil.