Alien: Earth creator Noah Hawley has explained episode 5's horrific new creatures and how they fit into the larger purpose of the series. Alien: Earth 's new species have proven themselves formidable threats throughout the show so far, from tick-like leeches that suck out large amounts of blood to an alien that mimics the eyes of other creatures for survival.

In an interview with ScreenRant 's Grant Hermanns for the season's halfway point, Hawley explained how the use of these creatures in Alien: Earth episode 5 elevated the horrors of what was happening aboard the Maginot . This includes how the tick creatures lay eggs in water, alongside the multiple life stages of the Xenomorph shown throughout the episode:

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