Ludwig, Invasion! How Animals and Plants Conquer the World. Racoons plunder rubbish skips, tiny Pharoahs ants teach us fear, ambrosia worries those with allergies, African dromedars wander around down under and killer bees produce abundant honey for apiarists in the USA. How were these plants and animals able to travel so far? Why do they multiply so prolifically when they reach their destination? Do they cause problems for the local inhabitants? And are the invaders really such a danger, or do they actually even enrich our natural environment? Unusual and controversial stories about 31 plant and animal species with migratory backgrounds are presented here - an informative and amusing read.