June 1, 2015
Monkeys in the New World earlier than thought
Monkeys originated in Africa, but how and when they first appeared in Central and South America has long been something of a mystery. Now, a new …
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South America
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November 8, 2013
Slab tear explains perplexing Colombian earthquake activity
Colombia sits atop a restless intersection of tectonic plates: The Caribbean Plate is subducting along the country’s northern coast while the …