Chances are, if you see one, and it's not from a large distance, it already is going to try and murder you. They have an immense aggro range, and they deal a huge amount of melee damage. Unless you're very well armoured, I would suggest staying away. If you want to kill one, however, I would suggest using whatever tool/tame that you have that gets organic polymer the best, as they are the only creatures that can give you it (other than Coelaocanth from fishing), and it is useable for Ghille armor (which is almost undoubtedly the best armor in Scorch, as it halves aggro ranges and has even more hyperthermic resistance than desert cloth armor, with the same defense rating).
If you see it and are landing on a flying mount land somewhere else that are fast and can jump at you also a lot of times they are with other things like spiders and centipedes so look out for other things if your going to tame.