The Headcrab is a enemy created by The Conglomorate. They are shot down to the surface via drop pod from Conglomorate Space Stations in Earth's Orbit.
A hostile Headcrab is easy to fight, just a simple melee weapon or even your bare fists is enough to kill them.
Sometimes, headcrabs will not be hostile to the player. If a headcrab like this is found, it can be owned (With F11) and can be stored in the player's inventory.
Health:10
Damage: 5
Experience: 1
Drops:
Raw Headcrab Meat