This thing is probably the best possible animal you can have for water. The stamina regenerates instantly in the water and are super fast. They are lean mean fighting machines. It is actually really easy to tame as long as you are in a high spot and have tranq arrows and a crap ton of meat. I think that the only down side is that for some reason the food always goes down really fast, so always have a lot of meat in your sarco. I named mine Stanley.