The enzymes that act inside the small intestine are amylase, protease, and lipase. Amylase acts on starch and breaks it down into small carbohydrate molecules. Protease acts on proteins and breaks them down into amino acids. Lipase breaks down dietary fats into smaller molecules called fatty acids and glycerol.
Sandhill Cranes mate for life, choosing their partners based on dancing displays. Displaying birds stretch their wings, pump their heads, bow, and leap into the air. Although each female usually lays two eggs, only one nestling typically survives to fledge.
Condors can live up to 50 years, and mate for life. The female will lay her egg on a cliff ledge. Because there aren't any trees or other materials to build a nest with where they live they lay their egg on bare rock. Both parents take turns incubating the egg. They have one chick every other year.