While this question could come as a surprise for the non-initiated, anyone who has spent time on or around horses will know horses are forever getting injured, lame and sadly often worse. Horses are mostly big animals, seen as powerful and fast. Why is it, then, that they are so fragile? The answer is actually in the question: it's precisely because horses are big and fast that they are so fragile. Millions of years ago, horses used to live in forests. They were much smaller