It is one thing to see a tentacled-eyeball alien that consists of even more eyeballs launch out of a cat’s skull, but it is much worse to listen to. When you are squeamish (as I am), people often tell ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: FX / Hulu "In space," some marketing genius once said, "no one can hear you scream".

The languages used by extraterrestrials might be very different from our own, as was explored in the film Arrival (Credit: Alamy) Alien lifeforms are likely to have evolved their own unique ways of ...