👽🔬😱 Alien:Earth unleashes creepy new beasts — from bloodsucking ticks to brain-hijacking eyeball octopuses! Scientists rank which horrors could REALLY exist, and the shocking truth is some might not be pure fiction after all. The Xenomorph? Still nightmare fuel! #AlienScience https://theconversation.com/alien-earth-how-realistic-are-the-extraterrestrials-three-experts-rank-them-263553