this is key to the findings: "the team [added] Spanish-language papers, papers from smaller journals[,] and samples from a museum in central Mexico" to English sources, doubling their dataset. So much info out there if people are willing to investigate non-English records!
Bethany BrookshireDid you know North and South America used to have a sea between them? South America was the Australia of the early Miocene, marsupials and all. Then, they joined at the Isthmus of Panama. And mammals from the north flooded south. Uh oh... www.sciencenews.org/article/mamm...
