"Few forces have transformed our planet as thoroughly as the introduction of invasive species...."

"Burmese pythons have eaten their way through the Everglades; Indo-Pacific lionfish have swum roughshod over Caribbean reefs; silver carp have taken over Midwestern rivers. Most non-native species spill into novel habitats incidentally, as in the case of quagga mussels that likely poured into the Great Lakes from the ballast water of container ships. But ecosystems have also been distorted on purpose. John Muir argued that stocking trout in the fishless lakes of the Sierra Nevada would make angling 'the means of drawing thousands of visitors into the mountains.'... Reginald Mungomery, an Australian entomologist... imported toxic South American cane toads to eat beetles that were devastating the country’s sugar crop. The toads didn’t control the beetles but poisoned native mammals and snakes.... Jon Sperling... theorized that because New York has few native lizards to displace, Italian wall lizards would harmlessly fill an unoccupied niche. He even claimed that predators would benefit from a new food source.... 'My first instinct is, Who are you to play God like that?' Earyn McGee, a herpetologist... said...."

From "The Lizard King of Long Island/Jon Sperling secretly spread a non-native species across the Northeast. 'It’s insane what this guy was doing,' a biologist said" (The New Yorker).