Hundreds of lizard species don’t have legs. Legless lizards had limbs at one point, but their arms and legs became smaller over millions of years until they disappeared entirely. Many legless lizards live underground, where it’s easier to slither thr
Butterflies have good eyesight within 10-12 feet, but any farther, things look blurry. They also must rely on ultraviolet colors (invisible to the human eye) to find mates and the right flowers.
Medieval People Drank More Beer Than Water
Due to unsafe drinking water, beer was the preferred daily beverage—even for children. It contained low alcohol levels but was safer than contaminated water.
MRI scans work because of a property of particles called spin. Specifically, MRI takes advantage of the spin of the nuclei of hydrogen atoms to generate images.
