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.

"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

Erik Irmer has been documenting the spread of invasive plant and animal species that disrupt native ecology across Europe. He focuses on humans’ interactions with these plants and animals. Aliens is p ...

As American as Apple Pie: An Introduction to Weeds -- Out of Africa: How Slavery Transformed the American Landscape and Diet -- A Green Nightmare: The Un-American Lawn -- A Sow's Ear from a Silk Purse ...

The idea of isolation is prevalent through the Alien series. In space, no one can hear you scream, often because there’s nobody left to hear you scream. That theme also extends to the idea of what ...