: 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.

Kellin? There's no one here by that name.

Over four decades, the Alien franchise has brought many different versions of the xenomorph creature to theaters.

An artificial-intelligence revolution in biotechnology won’t get far without human taxonomic expertise — and that’s under ...

Airborne genetic material can be used to paint a picture of ecosystem health, watch for invasive species and even identify ...