Not too long ago, Brazilian neuroscientist Suzana Herculano-Houzel published a controversial study that boldly claimed that T. rex had an intellect rivaling modern baboons. The assumption was that Tyrannosaurus rex was very smart and might have even used tools (with those tiny hands?). It might have passed down knowledge to offspring through cultural transmission, this study said. All of this naturally attracted a lot of media attention. Suddenly, the king of the dinosaurs was not only physically menacing but also ultrasmart (for a reptile) — that’s double the trouble. However, a new study out...