If you are in the swamp with your flyer or argy and they started to chase you , just go to any big creature pracer , diplo , brunto near you and they will start to attack that creature instead of you , so gl to a decent distance than so you can look there gender if you want to tame it one more thing this trick doesn't work if you already on a rhynio they will chase you until you kill them or they kill you , if you have pump shotgun then you can easily kill them