A video of penguins huddling around heaters for warmth at a zoo in China has gone viral. The African penguins are seen gathered around an electric heater, with some are sprawled out on the ground, soaking up the heat. The zoo has been providing the penguins with heaters and adjusting their diet for winter since November. Unlike their Antarctic cousins, African penguins are native to southern African waters and are used to temperatures that range between 37 and 50 degrees (F).
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