Even if we cannot be sure that the arrival of Australian Aboriginals on the continent had catastrophic effects on its inhabitant animals, it seems that the animals had a rather spiritual outcome on the humans. The Aboriginal mythological "Dreamtime" includes a cast of monstrous creatures, many of which bear a close similarity to some of the real-life monsters that once stalked Australia's plains. Are the mythology based in fact? Perhaps: after all, these creatures are far unfamilia than anything dreamed up by humans.
