Coconut octopuses are among the most intelligent invertebrates around: They use tools, carry their shelters around for when they need them, and, fittingly, adopt an underwater walking motion that's very similar to humans.
Did you know dinosaurs had wishbones? Yup. When this guy was restored for display purposes, it was noted that his "furcula" was original. We think if you're pulling on a dinosaur's wishbone, you'd best get your wish.