An article published in the journal “PeerJ” reports the identification of a new species of feathered dinosaur dating back to about 150 million years ago, in the Late Jurassic period, in today’s Wyoming, USA. A team of paleontologists named it Hesperornithoides miessleri and classified it in the troodontid family, dinosaurs with various characteristics similar to birds. This species seems to be a primitive member of that group, an unusual discovery that raises new questions about the timeline of the evolution of birds and of flight in other dinosaurs belonging to groups that got extinct.