The asteroid that hit the Earth 66 million years ago decimated Earth's forests, leading to the extinction of three-quarters of all plant and animal life. Study suggests that among the survivors were ferns and hardy, ground-dwelling birds.

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The asteroid that hit the Earth 66 million years ago decimated Earth's forests, leading to the extinction of three-quarters of all plant and animal life. Study suggests that among the survivors were ferns and hardy, ground-dwelling birds.