ck12.org

e0YY6 TIL some animals can be made from just one parent. For example, the Komodo dragon, only has a mother. Asexual reproduction, the most primitive method of reproduction, involves a single parent and produces a clone, an organism that is genetically identical to the parent.
9YbbG TIL stars don’t actually twinkle. Light rays penetrate through different layers of air, distorting the brightness. That’s atmospheric Refraction.