Human-sized penguins once waddled the Earth

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They found evidence of one in New Zealand, a 60-million-year-old fossil encased in an ultra-hard sedimentary rock. Scientists estimate the bird weighed about 220 lbs (100 kg) and stood just shy of 6 feet (1.77 meters)—pretty hefty for a penguin.

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Those giant penguins died out about 20 million years ago, though, scientists say. That’s about the time marine animals such as toothed whales and seals would have appeared, increasing competition for food.

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