In the California deserts, lizards with heavy scales bask at the top of ravines to warm in the sun. Living in the dark, wet climate below are lizards smooth and sleek. Though different, they are the same species—a biological adaptation. Many spend their lives wandering up and down the ravines to mate, continuing the chain of life of a species not concerned with of the differences in their biological appearance.
Dr. Nouna Bakhiet loves metaphor. She also loves teaching science.
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