Headcrabs are alien parasitoids, roughly the size of a pumpkin. They are covered in smooth skin that varies in color between subspecies, and walk on four legs comparable to those of a spider. The shape and length of these legs relative to the mass of …

2021年10月1日 · I've spent weeks trying to figure out the anatomy of headcrabs, and you illustrated it perfectly. This is awesome.

Headcrabs control their host through the neurons. The headcrab is both intercepting messages from the human brain, and feeding neurotransmitters of its own into our neurons.

Headcrabs are a parasitic species, attaching to the host's head and clamping onto their skull using their sharp beak. After breaking through the skull, the Headcrab proceeds to take over its host's motor functions through some unknown biological process, keeping its host alive but helpless through the entire process.

2015年4月13日 · For those who don't want to read it, head crabs are parasitic creature from another world/dimension. They are about the size of a cat. They crawl around and when you get close they jump up towards your head. When attached to a persons head they turn them into zombie-like creatures. How do they work? What are their insides like?

2019年1月29日 · Fast Headcrabs and Black Headcrabs both walk on their claws, and in addition their front claws and rear claws are identical, which is at odds with the standard Headcrab which walks on stubby front legs and has distinctly different back legs.

The Standard Headcrab, or simply the Headcrab, is the most common Headcrab subspecies, having teleported to Earth in abundant numbers during the Black Mesa Incident. Headcrabs are fairly small creatures, about two feet long from front leg to back and a foot wide.

Headcrabs are cat-sized, crab-like (or perhaps tick-like) creatures. They come from Xen, but there are some subspecies that are not indigenous to that region; rather, most of these subspecies live on Earth.

Headcrabs are fairly small creatures, about two feet long from front leg to back and a foot wide. They have round, smooth, tan-colored bodies and four legs, two long clawed ones on the front and two thick, stubby ones in the back.

They are referred to as "headcrabs" because they leap out and latch on to human heads, then proceed to take control of their victims' bodies. A typical headcrab is small, about 1 foot in height and 2 feet long. The creature's body is composed of smooth skin with a sickly tan pigmentation.