Guidepost 2: What are the four goals of the scientific study of human development, and what do developmental scientists study? 1  The study of human development seeks to describe, explain, predict, and modify development.  Ways of studying human development are still evolving, making use of advanced technologies.
Dabbling ducks eat plants, seeds, grasses and other small insects and animals that they find on or under the water. Ducks which have broad beaks, (shovelers) sift their food for insects, snails and seeds from the mud.
By the time the hen and her ducklings reach the source of food, the ducklings are ready to eat. Ducklings need food that is rich in protein and fat, because these types of food sources help baby ducks grow. Some of these foods include snails, earthworms and crustaceans. Baby ducks also eat invertebrates, insects and insect larvae. Ducklings grow very quickly, and within two weeks, they begin to look more like and eat more like adult ducks.