A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems.

An infographic showing the average declines in abundance of key terrestrial insect groups due to invasive alien species. The extent of declines varies across species and regions. Insects are often ...

Invasion centers on the arrival of a terrifying alien species and how it impacts humanity, raising huge questions about the species and what they want that will be answered in season 3. The series's ...

Invasive alien species : the nature of the problem / Harold A. Mooney -- The economics of biological invasions / Charles Perrings, Silvana Dalmazzone, and Mark Williamson -- Vector science and ...

What would humanity do in the face of an alien invasion? Imagine that the Earth falls under siege to an extraterrestrial threat. Would that be the stimulus that finally unites us all as a single ...

This story first appeared in Trying!, a thoughtful, funny, wide-ranging daily newsletter featuring essays from the mind of Matt Gross. You can sign up for them here. Those were simple aliens for ...