‘Dinosaurs Among Us’ at American Museum of Natural History, Selected by Mark Dion

The name of the animal represented by this model, Mei long, means “soundly sleeping dragon,” and the little animal was either covered by an ash fall as it slept or poisoned by toxic gases from a nearby volcano. Fossils preserved in a life pose are rare, and this one looks very similar to that of a sleeping bird.

©AMNH/R. MICKENS