ocr: Learning Extra Relationships Animal Interdependencies (page 1 of4) Play an interdependency game. DESCRIPTION Tropical forests cover only about 6% of the Earth's surface, and yet they house between 50-80% of our planet's estimated 5 to 30 million plant and animal species. The key to this tremendous species richness lies in the stability of the tropical forests themselves where climactic conditions have remained relatively constant for 60 million years. Sophisticated plant and animal adaptations, developed through natural selection, allowed for diversification into highly specialized niches. OUT ...
