Years of research by scientists shows that elephants feel emotions such as joy, anger, grief, altruism, compassion, stress, and love. It has even been said that the emotional attachment elephants experience towards family members may even be comparable to that of human beings. This research suggests that these large land mammals do not solely focus on survival. They also act on feeling.
Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect’s abdomen. The air then diffuses down the blind-ended tracheae. Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.
Goal posts were originally kept on the goal lines, but after they began to interfere with play, they moved back to the end lines in 1927, where they have remained in college football ever since. The National Football League moved the goal posts up to the goal line again in 1932, then back again to the end line in 1974.