Can easily over encumber itself gathering organic polymer. However, using a quetzal as a carrier of both the animal and the polymer can allow for very successful polymer runs. Sometimes bringing in excess of 1000 in a hour run on an island server.
You can tame it on primitive plus but you need to make the kibble in a cooking pot. It won't work if you make it in a cauldron. Hopefully that's helpful to those that are trying to make kibble but cannot.
They're great at clearing out pirhana infested waters, since pirhanas will go right up to it but then make a quick 180 when they realize what you're riding, and you kill them in one shot. Great for clearing out swamps, just be mindful of all the other monsters there, especially kapro's