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Borneo used DDT to kill the mosquitoes that carried diseases. However the roaches stored DDT in their bodies and it made the lizards that ate them ill and the lizards got slower. This made it easy for cats to eat the lizards. The cats that ate the lizards, died. This led to an increase in the rat population. It also led to an increase in caterpillar population because the lizards were not there to eat them. The caterpillars ate the roofs of many homes. Eventually Borneo had to air lift cats by parachutes.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2636426/

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8y ago

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