For more than a century, scientists have wondered why physical structures like blood vessels, neurons, tree branches, and ...

Life on Earth relies upon an astonishingly short list of elements. Carbon, hydrogen, and oxygen compose the essential structure of all living things, trace amounts of metals like iron and calcium ...

The basics of photosynthesis are something that every student learns in school: carbon dioxide, water and light in; oxygen and sugar for growth out. In a world where atmospheric carbon dioxide levels ...