But giraffes can stand on flat ground and reach their head almost straight up above them. I tried to match the body position in the comparison image I made. I'm not sure why they think the giraffe's legs would be so far forward but it doesn't matter because it shows neck mobility. Anyways, in their image the neck and head are horizontal to the top of the giraffes back. You know they can lift their head higher than horizontal with their body. edit: I think their image may actually be correct because the weight of their neck would need to be in the water so it doesn't push them underwater. They would need to tilt their head up to breathe. But yeah this has nothing to do with neck mobility.