DNA study finds 19,000 genetic changes in Guam's invasive brown tree snakes
Brown tree snakes arrived in Guam following World War II and have since established themselves in exceptionally high densities across the island. New research has uncovered thousands of previously unknown DNA changes within the snake population. Scientists say this remarkable genetic flexibility enables the snakes to adapt to new environments and thrive despite inbreeding. The findings challenge long-held assumptions about how invasive species survive and spread.
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