Headcrab lifecycle.
WARNING: I am NOT a biology expert. So this might not make sense (even though we're talking about headcrabs here)
Idk if someone already did this but here it is.
So a baby crab is born out of a gonarch's sack, in a rather defensive way. This suggests that maybe they were already alive, just inside the gonarch's sack, but I don't know how that would work. They have a mini-sack in their "bellies" that most would just say is non-cannon. However, I beleive otherwise. The mini-sack is not present in the standart headcrab. I will go more on this later.
The headcrab eventually grows. Many headcrabs die before growing old, but the ones that do can begin the next stage of the cycle. They grow, become a brownish yellow and grow fangs. These can be cut off to tame them. These fangs have a toxin that mutates the host. In order to get to the next stage, the headcrab has to latch to a host. You know what happens next. Zombies, and then gonomes. The gonome has increased claws to dig into the ground. Once underground, the headcrab will feed on the gonome's body (hopefully dead now) and eventually, grows. The mini-sack grows into a sack, they grow a hardened shell and sharp claws. They can no longer latch to a host (duh?) and instead birth baby headcrabs. The claws allow them to dig and suprise prey. Now you may wonder: how does a gonarch eat? Well, I believe they eat like starfish, which could likely feed the baby headcrabs on the sack.
Well, goodbye.
