Dogs have both a physical and psychological need to chew. If not provided with a safe, approved chewing option, they will seek out and find things that we may not want them to!
Puppies start exploring their world with their mouths and will chew on almost anything they can find. As they grow, chewing can help with pain caused by incoming teeth. The action of chewing is also a great exercise for the jaw and helps the teeth grow in proper alignment.