Emus and ostriches look similar, but they’re very different. Ostriches have two toes and can run up to 40 mph. Emus have three toes and can only run up to 30 mph. Ostriches can also grow up to double the weight of an emu at 300 lbs. But perhaps the biggest difference is where they’re native to. While ostriches come from Africa, emus originate from Australia.