These guys are 100% worth the tame, ez tame, trike kibble is easy to make, just use a pteranodon to get on a rock they can't reach, use a crossbow and tranq arrows and shove the kibble down it's snout, these boys are great taming mounts, as you can pull items on top of it, like the crossbow, and it takes the damage for you, so pump levels into health and melee, as you can easily regen stamina instantly by going into water.
Just keep a slight distance away and shoot narco arrows into it's head. If you upgrade your movement speed some (idk how much exactly), you could just keep walking backwards to keep the sarco from reaching you since it never runs on land (at least none of them ever did for me).
Best thing to do about these guys if you haven’t learned tranq arrows is stay very far away. However taming is a good idea after you have tranq, they are really not that hard to tame. Best chances are to find one and shoot it and lure it on a fast-semi fast Dino (ON LAND) to a safe place and then just load it’s AssS with tranq. Then gibe some meat and you good.
This could actually be your first tame, just make sure it's alone then punch it from the back and it will try to turn around, just keep moving and try to be behind it and keep punching, it can't hit you, i was just messing around in a new server and i saw one of those i was going to leave anyways so i went to it from the back and kept punching it and it couldn't even turn and hit me and make sure you keep it away from water
It's better to tame one you find at a beach/river than one in the swamp. The swamp has a lot of dangers that can make taming in there a nightmare (namely titanboa and other sarco, but leeches are not fun either)
You can find them near pretty much any body of water. Sometimes they are hard to see if they are in the water. They will follow you out of the water, since they are much slower on land try to lead them away from the water.