Tranq Arrows/Darts DO NOT WORK!!! To knock this out you need to use a catapult and shoot in only on it's back. If you shoot it on it's legs it will kill it.

@Stormwebb19

THEY CAN BREED NOW GOOD LUCK ON MUTATIONS 👍

Cannon balls discrease taming effeciency significantly! So for high tame level, always use boulders. Please let other people know! :)

ASA: Catapult dont works in offical Servers. User a Canon and shoot at the Back. Build a Trap and good luck.

Pretty easy to tame. Trap it in a circular form of stone Dino gates, place catapult low if catapult is high the crab will die. Then shoot it with a catapult. Cannons insta kill the crab, do not use cannons

You can net them. Trap isn't needed ;)

They sometimes have babies following them but mostly only seen in blue or red zones (Asa only)

Normal creatures require “light torpor” to knock out and tame. But with the karkinos, astrocetus, rock golem and titanosaur require “raid torpor.” Raid torpor is dealt by cannons or catapults.

- TheScugMaster

If you are missing with your catapult and it's dying, drag dino corpses to it and let the karkinos eat the corpses. It will heal him up a lot then try again with the same torpor you left off with.