Hunting is going out to find and kill animals. Animals, and some humans, hunt for food or for fur to make clothes and shelter. Other humans do it for fun. Many places have rules that limit hunting. People were hunting since the time when people used stone and wooden tools. They used spears, and now people mostly use guns. Some people kill the animals to make clothes, or to decorate their homes, or to sell, for example in the fur trade.
Hunting can be good by keeping animal populations from getting too high. Hunting too much, though, can kill off species of animals, making them extinct. Hunting once made the dodo, a bird, become extinct.