image source, Scientific Photo Library


The sea lamprey, an invasive species in the Great Lakes of the US and Canada, where it feeds on the blood of fish.

Whether it be voracious cane toads or pesky squirrels, there are creatures that invade a place they don’t belong and wreak havoc.

They compete with local animals, devour resources and define themselves as pests.

But is there anywhere in the world free of invasive species?

This question piqued the interest of Piero Genovesi, who chairs the International Union for Conservation of Nature (IUCN) Invasive Species Specialist Group.