GUAM BIRDS EXTINCTION
In the 1940s, the brown tree snake reached Guam hidden in post-WWII cargo and set off a chain reaction that scientists are still measuring today; birds gone, tree seedlings down by up to 92%, and spiders multiplying up to 40-fold on an island that once had neither
US declares fabled Ivory-billed woodpecker and 22 other species extinct- Guam forests may be 'irreversibly damaged' by foreign snake species
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