Basically everything you need to know
Wolfbloods are creatures that transform from human form into wolves. This transformation usually happens during a full moon. Because of their connection to the full moon, wolfbloods are often perceived as werewolves.
Wolfbloods are stronger, faster, and more graceful than humans and possess heightened senses, among other supernatural abilities.
Powers:
Wolfbloods have heightened senses and increased physical abilities.Heightened Senses - Wolfbloods possess almost supernatural-level senses, such as being able to smell other scents that humans miss, or hear across distances that others cannot.
Super Stamina - The ability to run very fast for long periods (they have increased stamina and enhanced speed in human form and greater speed in wolf form).
Eolas: connecting with nature, culminating in the user discovering someone's whereabouts.
Wolf Form - The ability to change into a wolf on full moon or being angry or threatened (some very focused and gifted Wolfbloods can change into a wolf at will)
Accelerated Healing - Wolfbloods heal from wounds much faster than a human can. This ability is boosted in the Full Moon.
Super Strength - Wolfbloods are stronger than humans.
Super Speed - Wolfbloods can run much faster than a human. They have enhanced reflexes which means they react much faster than a normal person.
Ansin - Allows Wolfbloods to connect with nature and its past (Like Eolas, but stronger). It is a wolfblood equivalent of being psychic.
Transforming:
When Wolfbloods transform, the first visible sign is that the irises of their eyes turns from their regular eye colour, to a swirling black colour and then turns bright yellow. The veins in their hands and neck then start to become darker and reveal themselves. Every cell in their body changes, right down to their DNA and they become a wolf.
This process can occur when a Wolfblood is just feeling angry or threatened, and can be reversed at any stage by calming down again. However, this process cannot be stopped once the moon is full and the Wolfblood has begun Transformation during adolescence (in human years). Also, Wolfbloods can transform by taking wolfsbane, which will trigger a transformation similar to if the moon was full.
Wolfbloods cannot transform on New (Dark) Moons. Instead, they are stuck as a human. On lunar eclipses, Wolfbloods get locked in human form, but with all their wolf like abilities enhanced. Their yellow eyes and black veins are also apparent.
wild wolfbloods:
While most Wolfbloods try to live a normal life and lock themselves away during a full moon, there are some who live in the wild and do not like to mix with humans. They are known as Wild Wolfbloods. Most are born into these packs, although it is possible to join one having gone wild. Emma Smith's cousin, Louise, is believed to have done this after discovering Eolas. Wild Wolfbloods are, however, notorious for their harsh ways and vicious nature, and are said to kill humans and 'tame' wolves indiscriminately. Wild Wolfbloods have a stronger connection with nature than 'tame' wolves.
That's pretty much it.