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Whirligig beetles like to swim in groups on the surface of ponds. They look like a bunch of speed boats zipping around in swirly patterns but they never crash into each other. Their feet are like paddles that help them zip over the surface of ponds and streams.
It’s not every day you see a beetle with scuba gear, but the diving beetle comes close. It can trap a bubble of air under its hard outer wings and dive down to catch worms, leeches, and even fish.