After World War II, a small number of brown tree snakes somehow made it to Guam, likely hidden in cargo, and the island has been dealing with the consequences ever since. Today, the snakes are so widespread that in some parts of the U.S.

Brown tree snakes, an invasive species on Guam, have baffled biologists for years. Their population is believed to have started with only a small number of snakes. New research…

A study of the invasive brown tree snake genome found that, despite high levels of inbreeding, the snakes' genes found a way to thrive.