This is the definitive ranking of the best alien invasion movies of all time. In between those bookends, Lifeforce is one of the wildest, most unique, most incredible science fiction movies almost ...

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

(CNN) — Lake Naivasha, northwest of Nairobi, Kenya is becoming increasingly unnavigable. Water hyacinth, the world’s most widespread invasive species, is blanketing the lake, choking its fish and ...

An alien invasion capable of triggering catastrophic changes is underway across North America. At least 70 imported earthworm species have colonized the continent, and represent a largely overlooked ...

There are many different Grow a Garden events that increase the value of your plants. Each one comes with its own mutations that give plants a different appearance. Find out in our guide when the ...