The Nylabone Chew-Off!It is hilarious - Cisco (at 10 years old) has probably not chewed a nylabone in at least 5 years. We've always had them... he just lost interest at some point. Max loves his nylabones and chews them all the time; apparently this got to Cisco and now he has started it up again. Here they are with dueling nylabones. Too cute.