"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Alien species are taking over nature. Rogue rats are running amok on remote islands, predatory crayfish are cruising English rivers, Japanese knotweed is strangling South Wales, water hyacinth is ...

Rats are among the alien species which have caused global extinctions. Pictured: Rats eat grains of puffed rice in Allahabad on July 28, 2015. Getty Images/Sanjay Kanojia Maybe it's a good thing we ...

Claims that the Nazca mummies represent a new alien species originate from a self-published paper by a retired paleontologist ...

The steady rise in alien invasions is troubling scientists, who are concerned about the innocent Earth creatures that could be threatened. A group of researchers reported that the number of invasive ...

The European Commission proposed today (9 September) a new regulation to list and ban invasive alien species of plants and animals that are not welcome in Europe. There are currently more than 12,000 ...

Sign up to our Scotsman Rural News - A weekly of the Hay's Way tour of Scotland emailed direct to you. Did you know with a Digital Subscription to The Scotsman, you ...

Britain is under threat from more than 66 alien plant and animal species headed our way, experts warn, including a monster seaweed and a killer catfish. The ‘codium parvulum’ seaweed was recorded ...

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 ...

An ' alien life form' has been spotted crawling along the ground - and has baffled everyone who has seen it. The strange creature looks like "an alien life form that has got lost on earth" after it ...