For example, think of the difference between the feet of an eagle, a duck, and a heron. Children's Guide to Birds . Why . . . Have students do the Seed Matching Challenge. Have them explain how they decided what category to place each seed type in.
Most plants produce seeds to reproduce.
Think of seeds as plant babies. If all seeds fell straight from the plant to the ground, the seedlings would be competing with each other, and with the parent plant, for the same water, sunlight, and nutrients. Few, if any, seedlings could survive beneath the parent plant. Seed dispersal is one way to avoid this type of competition. Some plants take advantage of rivers, floods, rain, or ocean currents to disperse their seeds.