Giant sea creatures that filled Earth's oceans for ages began dying off in vast numbers approximately 2.6 million years ago, and researchers say supernovas may have played a role. Stellar radiation from a string of nearby star explosions would have drastically affected the animals, likely triggering the Pliocene marine megafauna extinction along with climate changes at the time, according to findings accepted for publication in Astrobiology.
LiveScience (12/12)
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