The number of werewolves has been very small, about three, but it has gradually increased due to the visit of the Cullen family, and even increased to 17 due to the visit of a large number of vampires in the second half of dawn. Werewolves have a saying called "imprint", which means that werewolves will have love for people who can give them the best and most suitable werewolf genes, similar to love at first sight.
The body temperature is about 40℃, and there are 24 pairs of chromosomes. Unless the transformation is given up for a long time, it will not age. According to errol, they are actually not werewolves, but "shapeshifters" (because real werewolves only move at night, also known as "sons of the moon"), and their prototype of ability comes from the legend of Labusi Indians.
Extended data:
About the "remember" plot-
Renesmee is Jacob's "remembered" lover. In the book Breaking Dawn 1, I tried my best not to want her to be born, thinking that it would endanger Bella's life, but I fell in love with Renesmee at first sight and decided to protect her for life.
From then on, Renee Smythe became the most important existence in his life, and she was nicknamed: Nisi (this nickname once drove Bella crazy), the fourth book, and they played together after snowflakes. When Volturi arrived, she successfully protected her with others and eventually became a lifelong companion.