The average person produces around 20,000 liters of saliva over a lifetime. That's enough to fill roughly two standard bathtubs. Saliva does much more than keep your mouth wet—it helps digest food, protects your teeth, and fights harmful...
Scientists have observed wild octopuses picking up shells, sand, and small objects and deliberately throwing them. In some cases, the objects even hit other octopuses nearby. Researchers believe these throws may be part of social interactions...
In 2018, a family walking along a beach in Western Australia found a glass bottle partly buried in the sand. Inside was a handwritten note that had been thrown overboard from a German ship in 1886 as part of a scientific experiment to study ocean...