POV: Dr. Phelps
So far, I have discovered that there are different types of zombies. I'm not sure how many to be exact, but I think there are roughly ten different types. There's the basic, regular type of zombie that everyone knows, of course. These ones are all over the place and will sometimes travel in hordes. They're not intelligent at all, except that some have been known to open doors and maybe pick up small objects.
Then, there are what people have dubbed Howlers. Howlers are deadly fast zombies, with a tendency to make a strange howling sound while chasing their prey. They aren't very smart, from what I've observed, and charge aimlessly at anything in their line of sight. From my studies, I have determined that the majority of howlers come from humans that were possibly athletes while alive.
Next, are Tankers. Tankers aren't very intelligent either. They're just huge, monstrous creatures with a lot of destructive power. They're slow and oafish. Nothing particularly special about these ones. They just look intimidating. However, if encountered they should still be avoided as you'd probably not survive a one on one fight with them.
Showing a bit more intelligence than the other two mentioned previously, are Creepers. Creepers are sneaky little bastards that are very hard to detect. They are somehow able to camouflage themselves and blend in with the environment around them. It's still not known how they are able to do this, and I have not been able to capture one for proper research. They are very hard to obtain, much less find for obvious reasons.
Jumpers are a bit similar to Creepers, but tend not to hide as much. Much like their name states, they can jump really high. They are able to jump over fences, into windows and over other obstacles. Nothing special about these ones, they can just jump really high.
However, there are Stalkers. Stalkers are similar to Creepers, but a lot worse. Stalkers are very dangerous, intelligent and cunning. They are able to hunt and track their prey, and have the mental capacity to differentiate between individuals. They specifically will only target a certain individual after catching their scent, and will not stop hunting them until the prey is caught. They do not hunt in packs or teams; they are loners. This type of zombie is able to look somewhat human, although very distorted.
Lastly, there are Fakers. Fakers are by far the worst of them all, and the most intelligent. Fakers are able to imitate human voices. They are called Fakers due to their ability to look and act nearly human. Sometimes, they cut the faces off of humans and plaster it onto their own in order to appear more human. This helps draw in their prey. These ones have such a high intelligence that it may be possible for a Faker to become fully sentient. From my research, I have determined that these zombies are already semi-sentient. I've been able to distinguish a Faker from a real human by noticing the wavering, crooked smile and wide eyes they all seem to have.
My research is not yet complete. There could be so many more types of zombies I don't know about. I don't know how this is possible. How are zombies able to evolve like this? I should have studied the virus more. If only I could find Keith. He's the only one who knows. But of course he would know...