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.
Biology 101. (For lab use only: these images have been swiped from other websites, and this page will disappear after the lab is over.) Vertebrate Animals. Ducks. Many species of ducks live around ponds. Ducks eat duckweed, algae, small arthropods, snails, slugs.