And researchers also suspect that rafting facilitated iguanas’ migration ... early iguana in North America.” As such, rafting seems like the most likely possibility. And the study authors ...

according to a study published Monday in the journal PNAS. The voyage made by these inadvertently intrepid iguanas would represent the longest transoceanic migration of any nonhuman land vertebrate.

Scarpetta and his team’s study adds new information to the rafting theory by focusing on the genetic history of Fijian iguanas. By studying genetic samples from 14 different iguana species ...