He Yelled at a Pond. Somehow “It” Yelled Back
Out on a lake in California’s Kaiser Wilderness, a man was relaxing at dusk. He realized that if he made a loud noise—like a yell—the pond would somehow “respond.” See the ripples answering his shout? It’s actually a natural phenomenon where water bugs respond with vibrations to loud noises. Or maybe they’re just yelling “Hey!” back?