On top of that, there was the big unknown when it came to the creatures. In her time in Ponyville, she'd learned that zebras excelled in potions and natural remedies, which was a completely foreign concept to her. They'd been given no more mention in school other than the fact that earth ponies were good at growing things and making machines, or pegasi could manipulate the weather. Everypony knew that—that was why the three tribes had had to work together to make Equestria great. No one tribe could do it on their own.