10-million-year-long Mammal Layover in Mexico Primed the Pump for the Great American Biotic Interchange Between North and South America
Published in the journal Science, a new study by NHM researchers shows that Mexico acted as a biodiversity "holding pen" for 10 million years ahead of the Great American Biotic Interchange that opened the floodgates between North and South America 2.8 million years ago.
