Remember that popular 1980’s video game Galaga? Little triangle shaped space ships would fly around the screen. Laser cannons would fire out of the top of the ships, laying waste to aliens that dropped down from the top of the screen. Now imagine finding the fossilized teeth of a freshwater shark that lived 67 million years ago in the forests, swamps and winding rivers of what is now South Dakota. Amazingly, those teeth look like the Galaga spaceships! So, if you’re a scientist, what would you call your ancient shark discovery? That’s right. Galagadon.
Chances are, you’ve probably seen a box turtle, either at a zoo or in a park, backyard or green space. It’s not as if they move quickly. With their short legs, box turtles lumber along and retreat at the first sign of anything unfamiliar. The box turtle pulls its head and legs into the shell and then, in an amazing protection skill, uses the hinged pastron (the bottom part of the shell) to close up behind them forming an impenetrable box. Yep, that’s where the name “box turtle” comes from.