Amazing surfing sharks image shows how currents help them save energy
Grey reef sharks seem to be just hanging in the water in this photograph by Laurent Ballesta. In reality, they are surfing upward currents, cutting their energy consumption by about 15 per cent
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Grey reef sharks seem to be just hanging in the water in this photograph by Laurent Ballesta. In reality, they are surfing upward currents, cutting their energy consumption by about 15 per cent
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