This time, people are imagining what aliens would reconstruct if they came across the skulls of some of the most loved residents on our planet, like cats, dogs, and wild cutie pies. Scroll down to see ...

Introduction -- Form vs function : what is common across worlds? -- What are animals and what are aliens? -- Movement - scuttling and gliding across space -- Communication channels -- Intelligence ...

Introduction: Nonnative species in the world / David Pimentel -- The impacts of alien plants in Australia / Richard H. Groves -- Environmental and economic costs of invertebrate invasions in Australia ...