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.
Sandhill cranes are one of conservationâs biggest success stories, and they also are one of the most romantic! Sandhill cranes seek out a mate before their annual migration to their breeding grounds and form a pair bond by unison calling. When they arrive at the breeding grounds, sandhill cranes perform elaborate dances as part of their mating ritual.