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.
Ducks are delicious birds, and many animals like to eat them. Almost any four-footed predator will eat a duck whenever it gets a chance.Foxes and weasels are just two of the many mammalian predators that ducks must face.Snakes also eat ducks, and so do birds of prey such as hawks, owls and eagles. Snapping turtles like to eat baby ducks.oxes and weasels are just two of the many mammalian predators that ducks must face. Snakes also eat ducks, and so do birds of prey such as hawks, owls and eagles. Snapping turtles like to eat baby ducks.