It isn’t a bizarre floral specimen, nor is it a fossilized sea creature from the Cretaceous-Tertiary extinction event. It’s a spear point edged with sharks’ teeth, and it comes from what was once called the Kingsmill Islands, then the Gilberts, and now the Republic of Kiribati�a broken necklace of atolls northeast of New Zealand, scattered on either side of the equator in the Pacific Ocean. Although it looks like a monstrous weapon of war, it more likely would have been used for spearfishing. It was collected in 1870 and brought to Harvard, where it resides in the Peabody Museum of Archaeology and Ethnology today.