The cane toad, Bufo marinus, is arguably the most hated pest in Australia (although some argue for the Common Myna), but how did it get here? Find out how it was introduced as a misguided attempt at a biological control, and why that went horribly wrong.

To balance them out with some more attractive animals—or at least, animals trying to be attractive—we take a look at some bizarre courtship displays, such as those of the satin bowerbird, the Adélie penguin, Anna's hummingbird, the kakapo (although they sometimes prefer zoologists), the marine flatworm and the giraffe. Um, NSFW, I guess.