On the road to Dinosaur National Monument, along Vernal, Utah’s main drag, there stands a dinosaur wearing a bikini. The cartoon Diplodocus has always unsettled me a little. Dinosaurs did not have mammary glands, much less breasts – that’s only a feature of some placental mammals, such as primates, elephants, and sea cows – so I’m not entirely sure why Dinah had to be covered up. The top implies the existence of something that could not have existed. Yet, even though we can be certain that dinosaurs did not have monstrous mammaries, a new Journal of Experimental Biology paper proposes that the archosaurs might have been capable of nurturing their young with an alternative to mammalian milk.
Simply titled “Dinosaur lactation?”,