An Oophaga lehmanni "Red" stands at the “Tesoros de Colombia” frog breeding center in Cundinamarca, Colombia, Monday, May 20, 2019. The species, that is poisonous in the wild but in captivity does not ...

From Egyptian geese at lakes to Asian hornets in trees and bullfrogs in ponds, invasive species present a growing challenge to farmers, beekeepers and conservationists around the world. "Invasive ...