Life is all about change. Day, night. Seasons. A life-span from birth to death. All living organisms are changing all the time. At the most basic level, we are a complex, coordinated series of chemical reactions. Our atoms and molecules form and transform. We seek new molecules in the form of food and water,...
High in the misty mountains of central Mexico, eastern Monarch butterflies rest for the winter in massive clumps hanging from trees, protected from harsh winds and snow. Then, in March, in response to lengthening days and warming temperatures, they begin an incredible journey north, fueled by the nectar of flowers in bloom in the...
