What's a dinosaur is a question that will probably have to wait, at least until the Doctor isn't quite so brand-new and in need of answers. (Though she wouldn't at all be surprised if he always has more questions.) Then she'll turn the tables and have plenty of questions of her own.

"Our dragons don't speak at all, unless you count shooting fire or ice or lightning with their breath as 'speech'. Also, they have this ear-piercing shriek to summon their children, which has the wonderful side-effect of stunning everyone in the area. The high dragons -always female- are pretty majestic, though you so don't want to be at anywhere near one is nesting. That's why this age is called the Dragon Age; we thought they were extinct for a long time, but then they resurfaced."