Roughly 252 million years ago, Earth experienced its deadliest known extinction. Known as the Permian–Triassic Mass Extinction, or “The Great Dying,” this cataclysm wiped out over 80% of marine ...
Roughly 2.5 million years ago, a nearby star exploded. Around the same time, the diversity of viruses infecting fish in Africa’s Lake Tanganyika rose dramatically. Three researchers from the ...
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