GREENSBORO, N.C. — Snowball, a beloved alpaca and long-time resident of the Greensboro Science Center (GSC), has died. He was 21. The GSC said Snowball was showing signs of advanced age and disease.
Around 700 million years ago, Earth was a frozen, white sphere, its rocky surface buried kilometers under ice. Despite the barren landscape, the evolution of complex life in the oceans was about to ...
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