: Some sci-fi aliens feel made up on the spot. Others seem so fully realized they could exist. This video explores the species with the deepest lore, logic, and worldbuilding in science fiction.

Alien plants and animals cost Europe over $1.5 trillion in the last six decades, according to a new study, indicating the global economic impact of such species could be several times higher than ...

The so-called ticks are not the only extraterrestrial bugs appearing on Alien: Earth. We’ve also got a nest of flies, which seems to live inside a hornet’s nest from our own world. We don’t know much ...

BEIJING -- China decided to begin a one-year action plan to prevent invasive alien species from entering border ports across ...

The portunid crab is native to the Red Sea and the Indian Ocean, but now it’s being found in the Mediterranean. Here's why ...

So far, Hulu’s Alien: Earth has been fascinating. Fans believe that the best part of the series is the introduction of new species in the show. While Xenomorphs and Facehuggers make a return, viewers ...

Some animals are so unusual that they barely look real, and transparent creatures are among the strangest of them all. These ...

The Alien franchise has always focused on just one titular alien — the Xenomorph. Yes, over the years, we got extrapolations of the Xenomorph, like the Queen, and the facehuggers. Yet they all still ...