Consider the Cherry Tree.
"A cherry tree produces thousands of blossoms which create fruit for birds, humans and other animals in an effort to grow one tree. The blossoms and fruit that fall to the ground aren't waste, they are food for other systems and processes that nourish the tree and soil. It's a question of design and eco-effectiveness, a question we should be addressing in our approach to life and manufacturing."
(McDonough, W; Braungart, M. Cradle to Cradle :Remaking the Way We Make Things. 2002, North Point Press, New York)