Weird bird mouths go all the way back to the first avian dinosaur

Breakthroughs, discoveries, and DIY tips sent six days a week. The is one of evolution's most infamous species--but it's also a very confusing creature. All present-day birds are technically dinosaurs, but the 150-million-year-old, raven-sized hunter is the earliest known example of an avian animal. At the same time, lived during the Jurassic Period among multiple other feathered dinosaurs that were birds in the true sense of the term. But if it's any consolation, it's often still difficult for paleontologists to tell them apart, too.