It's been well-documented that invasive species are threatening the Galapagos Islands' native flora and fauna, with alien or exotic species making up as much as 23% of the archipelago's insect fauna. One of these insect invaders, the sap-sucking cottony cushion scale, is being brought under control by the lady bug beetle.
"'Populations of cottony cushion scale in 2002 were so high and spread across so many islands that several endemic and native plant populations were thought to be going into decline because of heavy infestations,' said Hoddle, a biocontrol specialist.