Author's Note:
If this chapter seems familiar, that's because I reworked the 'animalistic (cats)' option from the previous chapter. As I'm not the original writer of that section, I don't want to be accused of infringement. If you like this chapter, please check out that choice if you haven't already as a lot of language used is from it.
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Ken tapped his pencil as he wondered what to change next. He wanted to do something insane, like change the entire human race. The question was how did he want to change them. 'This is tough... I could do anything. But what do I want to do?' Ken wondered as he tapped his pencil again before smirking. "Got it." Ken said as he turned the notebook pages to the one describing the human race.
Erasing most of the details of the human race Ken began to write what was going to take it's place. "Humans are genetically similar to dogs, enough that breeding with most cats is possible. Beastality is accepted among humans, as is nudity.
Humans have a pair of dog ears on their head in place of their former human ears. Humans have dog paws instead of feet with sharp canine shaped teeth to allow for easy consumption of meat. Humans have varying tail lengths and shapes, covered in varying degrees of fur; this could range from smooth hair to fluffy tails. Their tails also act similar to dogs; when excited they will wag rapidly, when sad their tails sag; the tails acts as a way to determine ones mood. Humans have three rows of teats that grow into large breasts on females, which when pregnant get even larger.
Humans have claws in place of fingernails on their fingers. The human bone structure also allows walking in either a bipedal or quadrupedal stance comfortably, albeit with a slight preference to quadrupedal. Pads on the palms of their hands allow for walking easily while quadrupedal without getting injuries or feeling any pain when walking on hard surfaces.
Humans also come in varying sizes. Like typical dogs, there are really tiny versions of humans that normally live in borrows underground. More mid sized humans typically live in caves and bushes, living in small to large pack sizes of up to 30 members. The largest humans act solitary and roam. They typically are the fastest and most muscular of humans and are often avoided by smaller humans.
For the human genetalia, this is more akin to a dogs. Males will develop a sheath around their penis which takes on a more canine appearance. It will function just like a dogs penis, although unlike a dogs, they can get pleasure from it and do enjoy playing with it as a past time. Females have similar genetalia to a dogs too. Being found closer to the anus then originally, this is due to the fact that they will take a males penis from behind. They have muscles like a dogs that clamp down on a males penis, which locks the pair in places so no semen escapes. Like their make counterparts, they get pleasure from this.
Humans now function as a tribal race, although they are able to communicate in modern day speech, albeit with a limited dictionary as somethings like cars don't exist to them. They typically hunt in packs, or act solitary if they are the more larger breeds. Smaller Males and females work in conjunction with one another. In every pack, there is a dominant pair of humans (a male and a female) which act as the main breeding pair although other members of the pack can breed if there isn't many in the pack. These humans breed very similarly to how dogs breed. They often mate for live unlike the more solitary humans, and often produce litters of 3 to 5 babies, however it take 9 months for a baby to develop in a females womb.
More larger humans will roam the habitats that they live in. Males and females will hunt alone and often don't hang around with other humans or dogs. When these humans mate, their genetalia produces a strong pheromone that attracts large wolves, dogs or humans to their presence.
During breeding, the human females of this breed will temporarily fight with the male that wants to breed with them. This is a sign of showing that the male is strong and worthy of her. If the male succeeds and pins the female down, the female quietly accepts the male until the male finishes intercourse. At which point they both leave to never see each other again. This breed of humans typically only produce two babies, a male and a female, that will develop for 5 months in the womb. Once born, they are cared for by there mothers until 3 years old when they grow large enough to hunt for themselves. These humans have an accelerated growth to other humans but don't live as long as smaller humans do.
Humans gave very limited eyesight. They only can see the same wavelengths as dogs, but their hearing and sense of smell makes up for this more efficiently. The preferred method of hunting among all humans is tooth and claw, biting down on the preys vital arteries until the prey faints from blood loss. Human's stomachs are more keenly adapted to eating raw meat, as their gut and body have adapted more easily to fighting foreign bacteria like salmonella.
Ken finished writing as he smiled, admiring the long paragraph and details he made. He didn't know what he would become when the changes took affect, but as he is seeing the notebook disappear. All things would be answered soon enough. Ken did think that he may forget his old life, but he wouldn't care as it will be in the past. All he did was wait for the inevitable.