Ok so this may seem like a useless creature to eat with your argintavious, BUT it's not. To understand its utility you must know that the females have no attack but the males attack compensates for that. The females compensate for no attack by being extremely agile. For example, 3 leaps and a dire bear is no longer hunting you and those terror birds or wolves are long gone.
The females are pure speed. They can't attack, however they can jump really far. I've had a few die that way. The males however, they sent as fast, still have the super jump. But they are the best thing to ever use for thatch gathering. Its worth it to get this as soon as you can.
My fastest mount. Best for taming because you can shoot tranqs from the back of it while keeping your distance. Then when the animal your taming decides it's time to turn tail and run you can chase it down and shoot tranqs at it. I love the moose! Females are fastest.