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.
REDFOOT TORTOISE. DIET AND FEEDING. Redfoot are not picky eaters and will usually eat whatever you feed them. Your goal is to make sure to feed a variety of healthy foods. Greens that are high in calcium and low in phosphorous and vegetable protein are needed to insure your tortoise has a healthy diet.