If you are reading this, you are most likely new player... so this is why and how to tame parasaur:

Why do I need Parasaur?

He is fast, faster than you, so it helps you a lot.

How to tame one?

1. Craft club or slingshot

2. Craft bola

3. Gather narcoberries and mejoberries

4. Find Parasaur

5. Throw bola at it

6. Use bola or slingshot to knock it out

7. When it's down, feed it narcoberries(to not wake up) and mejoberries(to feed it)

8. BOOM now you have a parasaur