IWAKI, Fukushima Prefecture—A weed described as “the worst alien species on the planet” has been discovered for the first time in the northeastern Tohoku region, alarming local farmers and officials.

Over 40 percent of extant large freshwater animals (megafauna), including carp, salmonids, crocodilians, turtles, beavers, and hippopotamuses, have ...

Naohisa Okuda, head of the Nature Conservation Bureau at the Ministry of the Environment, explains about Japan's new regulations on alien species, with his face painted like a red-eared slider turtle, ...

Known as the ``hammerhead worm'' because its head resembles a hammer, it is believed to have originally inhabited Southeast Asia and was introduced to the United States in the early 1900s with the ...

Some science fiction creators go far beyond simple alien designs. In this video we explore one of the most detailed alien ...

Marvel Comics is gearing up to introduce one of the darkest Alien comics ever published. Dubbed Alien: King Killer, this new ...

King Killer.