As I said there are plenty of examples in history of transporting humans against their will, and yes those historical examples include canoes and rafts. I thin

As I said there are plenty of examples in history of transporting humans against their will, and yes those historical examples include canoes and rafts. I think it’s much more probable there had to have been complex social relationships between these groups rather than the only possibility being that 1 species of prehumans developed single person boats used to migrate to these islands and then a second species of prehumans independently developed boats that also held a maximum of 1 person and used them to migrate to the same islands already inhabited by the 1 group, and then the 2 groups interbred per the article.