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 science fiction creators go far beyond simple alien designs. In this video we explore one of the most detailed alien ...

Some insects look more like aliens than they do insects. One example is a grasshopper that is able to survive by not looking ...

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.