Dinosaur eggs change perceptions of blood connections to birds

A new study on dinosaur eggs sheds light on a 150-year-old debate over the warm- or cold-bloodedness of the thunder lizard. Late Cretaceous titanosaurid eggshells were studied and contrasted with oviraptorid eggshells, both of which yield clumped isotopes that allowed scientists to compare thermophysiology of these extinct species to their modern-day counterparts. With these studies, determinations can be made on … Continue reading