Doubt cast on dino-killer theory
Researchers say Yucatan meteor strike came too early
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Jump to data The rise and fall of Earth's species
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Data: The rise and fall of Earth's species
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Buggy hordes of cicadas sighted in Virginia
There's been a groundswell of 17-year cicadas in Virginia and other southern states, as revealed by a fresh wave of photos and eyewitness reports.
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Buggy hordes of cicadas sighted in Virginia
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