Have you ever wondered why some animals or birds look or behave the way they do? Why does the bat fly at night? Why does the cock crow at dawn? Why does the elephant have such small eyes? Why does the mosquito buzz at the ear? Why does the dog live in people's homes and not in the bush or forest? There are answers to these questions. There is also an interesting story about each of them that may surprise you. A Feast in the Sky is one of such stories from which we learn why the tortoise, which used to have a very smooth and beautiful shell, now has a cracked shell.