Raft or bridge: How did iguanas reach tiny Pacific islands?
Thursday, January 14, 2010 - 00:28
in Paleontology & Archaeology
Scientists have long puzzled over how iguanas, a group of lizards mostly found in the Americas, came to inhabit the isolated Pacific islands of Fiji and Tonga. For years, the leading explanation has been that progenitors of the island species must have rafted there, riding across the Pacific on a mat of vegetation or floating debris. But new research suggests a more grounded explanation.