A flamingo that never learned to stand on one leg, that spent most of its time in the water with both legs immersed, would lose somewhere around 40-70% more body heat than a flamingo that did learn this behavior.
The ideas of the Enlightenment played a major role in inspiring the French Revolution, which began in 1789. After the Revolution, the Enlightenment was followed by an opposing intellectual movement known as Romanticism.
Although there is no consensus about the exact span of time that corresponds to the American Enlightenment, it is safe to say that it occurred during the eighteenth century among thinkers in British North America and the early United States and was inspired by the ideas of the British and French Enlightenments.