While Xenomorphs are perhaps the most terrifying alien creatures, not just in the Alien or even Predator franchises but in all of science fiction, one of the earliest stages of their life cycle–known as the Chestburster–have a weakness that could mean the end of the deadly species forever.
The Xenomorph life cycle is one of parasitic cosmic horror as it relies on the sacrifice of a living host for the continued existence of the species. The cycle begins with an Ovomorph, a large egg containing what’s known as a Facehugger. Whenever a living organism that is deemed a suitable host by the Facehugger within the Ovomorph approaches it, the Ovomorph opens and the Facehugger springs out and attaches itself to the face of the reluctant host. The Facehugger then impregnates the host with biological material–which mixes with that of the host–before removing itself from the host’s face and dying, having completed its objective within the life cycle. As the Xenomorph gestates inside of the host, it begins to take form within a matter of hours until it is strong enough to gruesomely burst forth from the host’s chest, earning itself the name Chestburster. A few hours after that, the Chestburster matures into a full grown Xenomorph whose duty is to locate more potential hosts to bring to its hive’s Ovomorphs and begin the cycle all over again.
Related: Alien: Xenomorphs' Most Terrifying Ability Has Nothing To Do With Killing
In Aliens: Purge by Ian Edginton and Phil Hester, a team of human scientists are deciding the best ways to infiltrate Xenomorph nests that don't rely on Synthetic usage despite the fact that androids are the best and safest way to explore alien hives. After excruciating research, they come to discover that a
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