Brown Tree Snake (Boiga irregularis): Accidentally introduced to Guam after World War II via cargo ships, the brown tree snake has caused an ecological disaster. With no natural predators, it proliferated and drove at least 12 native bird species to extinction on the island. It also preys on lizards, bats, and small mammals, disrupting food webs. The snake frequently climbs power lines, causing blackouts and costing millions in damages. It poses a threat to nearby islands, including Hawaii, where an invasion could be catastrophic. Control methods include trapping, toxic bait, and detector dogs. The brown tree snake is a textbook example of how a single invasive predator can devastate island biodiversity and infrastructure.
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