The Stegosaurus Had a Tiny Brain

The impressive Stegosaurus is famous for its large, armored body and striking plates, but it had a surprisingly tiny brain, only about the size of a walnut, weighing just 3 ounces. This has led scientists to debate just how intelligent this dinosaur really was. It is worth noting that humans have developed smaller brains as we’ve evolved, yet we’ve become more thoughtful during that time. In other words, the size of the brain might not be a technical factor here.