Alien: Earth episode 3 has introduced a huge new piece of Xenomorph lore by revealing how the creatures actually communicate.

Wendy and Hermit have a scary face-off with a xenomorph in Alien: Earth season 1 episode 3, and it doesn't end well for them.

Earth landing on Hulu, we asked a zoologist if any of the Xenomorph's infamous characteristics occur in the natural world ...