Evidence grows that peopling of the Americas began more than 20,000 years ago

[Warpy]

2. The Siberian land bridge people were latecomers

They found bones and rock art in eastern Brazil that were originally assumed to be African, just from the skull features that were still intact. When they ran the genome, they were shocked to find out they'd come by way of Melanesia or Australia. Island hopping during the glacial maximum was probably a lot easier, much more land was exposed.

I'm not a bit surprised there were alternate routes here. Boats made of skins are surprisingly seaworthy and hunting cultures could have lived aboard them for a long time. Another giveaway is the cluster of people with Denisovan DNA they found in northern Peru and southern Ecuador. It's fascinating trying to trace deep time migration patterns through DNA oddities. We're probably the last people who will be able to do this if civilization and global travel hang together.

I'm always amazed by the power of conventional thinking. They've known about a lot of these sites for decades, but it's only in the last 10 years or so that I've seen them taken at all seriously.