Birds are Aves, which is part of the clade Theropoda, which is in Saurischia, which is in Dinosauria. Those birds outside our windows are dinosaurs. We can clear out the rest of our brains because we now have the best fact.

My new book, Thing Explainer, is out today!
(If you're in NYC, you can also come see me!)

Order: Amazon, Barnes & Noble, Indie Bound, Hudson

A puzzle for UK readers