If you build I trap with four Dino gateways and on both sides put door you can trap them as long as you lead them in a close the door behind them. After that search up how many tranqs it’s gonna take to knock it out then do like 3 less then that amount. Afterwards bring a dead body to it and let it eat it. Once it’s done eating it should have a green aura then you knock it out. This makes it so it’s food drains faster.