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

The most beloved beings from strange new worlds.

Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier for non-native plants and animals to get a foothold in far northerly ...

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

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 ...

The sea is dark and full of terrors. There may or may not be water on Mars, but there are apparently Martians in the water. A fisherman is making waves after sharing footage of a bizarre, mystery sea ...

They’re UFOs — unidentified floating objects. Online denizens were left baffled after mysterious blobs were spotted in an Oklahoma lake — with many comparing them to “alien eggs.” The Oklahoma ...

"Scientists are confident that life exists elsewhere in the universe. Yet rather than taking a realistic approach to what aliens might be like, we imagine that life on other planets is the stuff of ...