Vampire info

My vampires, let me show you them.

I was very lazy in drawing this, I will probably change things later, I really need to come up with less confusing terms for things, I probably forgot something in the following infodump. Enjoy!

Vampires
Vampires are animalistic, non-sapient creatures with a natural inclination toward minor shadow magics. They get to roughly the size of a large horse and feed on any living animal.
A vampire has two rows (upper and lower) of needle-like teeth. The teeth have holes in the tip, through which a toxin is secreted and through which it takes in the blood of its victim. From the teeth the blood goes straight into the creature’s circulatory system, where it makes use of the nutrition already in the victim’s blood. Due to the large size of the creature, it has to feed many times in a single day.
Vampires make no noise save a chirping or clicking sound originating in its chest, as vampires have poor eyesight and make use of echolocation to navigate their environment.
Vampires occasionally create shadow magics to terrify and perplex their prey, but primarily they use the magics to create bat-like wings, either for fleeing danger or for chasing down a victim.
Being an entirely different species from them, vampires are unable to and most likely uninterested in mating with humans.

Human Fullblooded Vampires
A “fullblooded” vampire is either the result of a non-human or fullblood vampire attack and subsequent change, or the offspring of two fullblooded vampires. The vampire toxin creates a set of Vampiric traits when the subject is turned: your usual image of pale skin, glowing red eyes, dark hair, lankiness, fangs, etc.
Certain side effects come with the vampire package, also generally well known by the populace - photosensitivity, an allergy to garlic, etc.
Fullbloods turned during their lifetime have the same venom as non-human vampires, fullbloods which are the result of vampire sex have the same venom as a halfbreed.
Human-vampire fangs, both fullblooded and halfbreed, are your standard sharp canines which the vampire uses to puncture the skin of a victim, and from there they swallow the resulting blood. They digest the blood just like any other food. Unlike non-human vampires, fullbloods and halfbreeds have to feed on sapient blood - your pet cat or the neighbour’s cattle will not do.
Fullblooded vampires will need to feed on blood at least once a day to survive.

Halfbreeds
As you may have guessed, halfbreeds are the result of a mixed human/vampire bloodline. The further the offspring is from the vampire parent, generationally speaking, the less likely the child will exhibit vampire traits and therefore turn out to be a halfbreed. Generally halfbreeds only exhibit certain traits (functioning fangs, red eyes, pointy ears) but may exhibit all of the traits usually associated with vampirism, depending on the genes involved. If a child is born of vampire/human blood but does not exhibit Vampiric traits, the child is not considered a halfbreed, but human.
The frequency with which a halfbreed will have to feed on sapient blood varies with how strong the vampire blood is in him/her.

Toxin
All vampires secrete one of two types of complex toxin whose primary purpose is to sedate the victim, as blood-draining is a time consuming process and it does not help to have the victim thrashing about while you have a go at them.
Both toxins are very addictive and very strong drugs with a euphoric and sometimes hallucinatory affect. In the first type, which is secreted by non-human vampires and fullbloods which were themselves turned (by either another fullblood or a non-human vampire), there is a chance that the drug will kill or turn the victim. In the second type, which is secreted by fullblooded offspring or halfbreeds, there is no chance of the victim turning, and no chance of death except by overdose.
In all human-based vampires, the toxin is secreted between the canine teeth and gums immediately before and during a feeding. Vampires are not immune to their own venom and so will succumb to euphoric effects during the feeding.
The venom sacs, located below the sinuses, will cause the vampire’s fangs to protrude slightly and become more prominent when full. A vampire that feeds regularly will be able to avoid this phenomenon.
Animal species are able to be turned by the toxin, but most animals do not survive a non-human vampire attack and fullbloods are unlikely to attack animals as non-sapient blood does not sate their bloodlust. A larger animal has a higher chance of surviving the attack, and a carnivore or omnivore has a higher chance of turning. That is, you may well run across a vampire-bear in the woods, but a vampire-deer is unlikely and a vampire-squirrel unheard of.

TL;DR "Our vampires are different"