I say grab a Dire Bear, level the damage a bunch (mine was in the 2,000s) and go hunting. I got 245 hide from a jerboa, A JERBOA! Dire Bears are epic
Giganotosaurus can gather 28 hide from 1 terror bird, while sabertooth can gather 43 hide from 1 terror bird, also explorer notes says it's the best tame for gathering hide. Sabertooth deserves more stars than giga
The Therizino’s bite attack gives you only hide, no meat.
Tame a breeding pair of sheep, imprint and let sit in cryo for a few days, throw out dump all points into health then slaughter and harvest with chainsaw endless hide.
The C-Attack from the Therizino gives you only hide no meat. And it gives you a lot hide...
Harvest creatures with a chainsaw and you will get loads of this stuff
If you have pack of high level direwolves...you can let them enable wandering and set them into aggressive...almost like you have a automatic hide farm
In primitive plus you can make a stone knife that gives a lot more hide than any thing else
Direwolves are the best for hide, they're easy to tame and are very fast. I have a direwolf that had 1000+% damage and I got 200+ hide from a terror bird.