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 ...

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

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 ...

WARSAW, Poland (AP) — A respected Polish scientific institute has classified domestic cats as an “invasive alien species,” citing the damage they cause to birds and other wildlife. Some cat lovers ...

All the Latest Game Footage and Images from Alien Animals: Sandbox Unleash your creativity in this block building sandbox game with defense strategy elements! You play as an astronaut armed with a ...

Claims that the Nazca mummies represent a new alien species originate from a self-published paper by a retired paleontologist. A detailed peer review challenges these conclusions, identifying the ...