Description Karl is an Abyssinian ground hornbill with a special challenge.
Could an old Bird skeleton and a 3-D printer give Karl a new beak? Karl\'s new adventure was about to begin.
His zookeepers at the National Zoo and friends at the Smithsonian Institute wanted to help.
Karl did a great job of adapting and finding new ways to eat, but he wasn\'t getting all the food he needed.
His lower bill had broken off and made eating difficult.
Description Karl is an Abyssinian ground hornbill with a special challenge