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#DidYouKnow that the name Camarasaurus means "chambered lizard" in reference to the weight-reducing air sacs in their vertebrae? This is not a feature unique to Camarasaurus; pneumatization can be seen in the skulls of mammals, crocodilians and in the skeletons of birds! 🦕😮 http://pbs.twimg.com/media/FJ51f0XWYAM4TVA.jpg