Engraving of Giraffes near Gobero in Niger, ca. 8,000 yrs old, witness green times in the desert. Credit: Mike Hettwer, 2006, www.hettwer.com Past River Activity…
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Left: (a) Collection location of the sclerosponge specimen LSI?4 (Lee Stocking Island, The Bahamas). (b) Slab of the sclerosponge analyzed with the shaded region indicating…