The newest trailer for Alien: Earth promised to change the entire Alien franchise in one huge way, and it could fulfill a goal Ridley Scott has had since Prometheus. Ridley Scott was the director ...

Some insects look more like aliens than they do insects. One example is a grasshopper that is able to survive by not looking like one at all. The Peruvian jumping stick has a unique appearance for a ...

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 ...

The spread of species beyond their native habitat is a human-made environmental change on a global scale. Among vascular plants, over 16,000 species have now permanently settled in foreign countries.