You might have heard about magical reindeer that pull Santa’s sleigh. But the regular reindeer that live in the Arctic don’t fly. They just eat, drink, walk, run, poop, and do everything else mammals do. Also known as caribou, reindeer are one of the biggest types of deer, with males weighing 400 pounds and females topping 250 pounds. They’re also incredibly strong and people do use them to pull sleighs…but good thing they aren't trying to fly!