Well, since ankle is a somewhat slow creature use this to your advantageand, and it always has to do a 180 spin to hit you so when it starts to spin jump backwards (probably should make sure there is nothing behind you though) jump back, hit, jump back, hit. You'll get the idea.
1. Get tranq arrows and a crossbow
2. Find an anky of your desire
3. Shoot it in the head while walking backwards (they're slow so you can just walk while shooting)
4. When it runs away chase after it and shoot it
5. It'll be knocked out.
6. Feed it recommend food and any narcos if needed.
They get about 3x more metal than you! And depending on the level they can easily kill Raptors and other small predators.
They're found almost everywhere
Beaches, highlands, chalk hills, green forest, I've even see some near desert.