What's the world's smallest dinosaur?

Researchers believe they have discovered the world's tiniest known dinosaur in a 99-million-year-old piece of amber retrieved from Myanmar's Cretaceous period. The specimen, which was around the size of a bee hummingbird—the world's tiniest bird, weighing about two grams—had enormous, protruding eyes and may help experts comprehend how tiny birds evolved from larger dinosaurs.

The beak of Oculudentavis khaungraae, a new species seen above, is clearly displayed on the creature's bird-like cranium. Oculudentavis is a portmanteau of "eye tooth bird", an appropriate name chosen by the researcher due, in part, to the "unique" skull traits of O. khaungraae.