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 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. Turnip greens, dandelion greens, collard greens, cactus pads, and chickweed all have a high calcium content and are good choices for the Base-Diet (foods fed at every meal). A good rule of thumb on how much to feed your Redfoot is to feed them as much as they will eat in about 20 - 30 minutes. It takes a few feedings before you get the hang of how much food to offer. The following is a suggested feeding schedule for a Redfoot that is under a year old.