Vampires remain the same age physically and mentally forever after they are turned. They don't age and they don't mature. This is discussed in Breaking Dawn when the concept of the immortal child is brought up.
Physiology. Born vampires age like normal humans and require both ordinary food and blood to survive. They have fangs and some vampire abilities, such as enhanced speed, agility and senses, but to a lesser degree than a full vampire.
Newborn or newborn vampire is the term for a vampire that has been transformed for less than one year.
They live immortal lifespans, despite these weaknesses, and it is fairly common for a vampire to be centuries old, although they still slowly age; a vampire who is six hundred years old may appear as a middle-aged breather would. They are naturally nocturnal beings, and will typically sleep by dawn.
Fledgling is also the informal term for a new vamp in the Vampire: the Whatever (Masquerade/Requiem) games. With the more formal term being "neonate".
A human-vampire hybrid, also known as half-vampire, vampire hybrid, half-human and half-vampire, and half-immortal, is the offspring of a female human and a male vampire. It is generally beyond the ability of most vampires to be this close to a human physically and still resist the lure of her blood.
As a result, she not only gains immeasurable strength and good health, but her daughter, Renesmee, is born a vampire-human hybrid. Renesmee is special, because she is not an Immortal Child, or a child that was bitten by a vampire. Instead, Renesmee is born biologically.
Jasper is the youngest vampire in the Cullen pack so he has the hardest time resisting human blood.
Jure Grando Alilović or Giure Grando (1579–1656) was a villager from the region of Istria (in modern-day Croatia) who may have been the first real person described as a vampire in historical records.
Khayman was one of the oldest vampires at nearly 6,000 years old, he appears in very few of the books in the series, but was nevertheless considered a powerful force among their number.
Vampires have blood, which is what's used to fill those erections generally required for sex, in their system only after they've hunted and sucked their victims dry.
If vampires have no blood, how did Edward impregnate Bella in Twilight? The venom in body serves as a substitute for his sperm.
Vampires also never age once they hit Young Adulthood unless you force them to age up. Ergo, vampires will never die of old age. However, vampires are not completely immortal. They can still die from downing, fires, electrocution, or other accidents.
Like human blood, vampire blood is red in colour.
A vampire is a non-dead and non-alive chimerical creature, which, according to various folklores and popular superstitions, feeds on blood of the living to draw vital force. Vampires do not reproduce by copulation, but by bite.
Vampires not being able to have children is not based on the fact that they died. They aren't a walking corpse! They are as alive as any resurrected human. They are unable to have children because nature forbids it.
In comparison to humans, a 118 year old vampire is roughly the equivalent to an 18 year old human in terms of appearance.
Two of the earliest examples of female vampires appear in Greek and Judeo-Christian mythology, Lamia and Lilith. While these subjects are often blended into one figure, they were at one time considered two individual female vampires known for preying on children and men.
Maacah is believed to be the first vampire in all of Creation, however, that status is given to Dracula for Maacah is more of a deity. He is the patron deity of vampires and is an important figure in vampire history as he is believed to have lead to the creation of Dracula.
In Balkans folklore, a dhampir (Albanian pronunciation: [ðamˈpir]) is a mythical creature that is the result of a union between a vampire and a human. This union was usually between male vampires and female humans, with stories of female vampires mating with male humans being rare.
According to biblical chronology the first human, Adam, was created something around 4,000 BC. So Lilith should be at least more than 500 years at the time of her death. According to her powers she must be significantly older, most likely something around 8,000 years, as mentioned above.
The term "immortal" is used to describe the species into which Silas and Amara, the very first immortal beings in history, were transformed when they consumed the immortality elixir created by the witch Qetsiyah. Immortals can be considered as the template for the Original vampires and, in turn, all vampires.
Renesmee is fascinated by everyone in her surroundings, despite their being different species. She mostly prefers not to speak out loud and instead use her power to communicate with others, because she finds words insufficient to describe her feelings.
When they phase into a wolf for the first time, they stop aging. There are plenty-a-plot-holes here BUT if Jacob maintains a regularly scheduled shape shift, he can essentially stay young forever. This is a good thing because Renesmee will be Jacob's age physically in a mere few years.
Bella gets pregnant after one night of passionate sex with her husband Edward the vampire, sex that leads to the destruction of their idyllic honeymoon suite.