Marlin are among the fastest fish in the ocean, capable of reaching bursts up to 68 mph. When they leap from the water, it's called breaching, and scientists believe they do it for multiple reasons: to dislodge parasites, to evade predators, to communicate, or even to help them hunt by stunning prey like sardines and mackerel. Their long, spear-like bill and torpedo-shaped bodies are built for speed, allowing them to rocket through the sea and take to the air in dramatic bursts. But with warming

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