I strongly believe that the Hydes as a species is not nature’s work but the result of an attempt at weaponizing humans and turning them into outcasts.

I see both similarities to humans, gorillas and wolves if not werewolves.
An Hyde clearly needs it’s longer arms to move efficiently so it’s arguably quadrupedal and yet they still have hands and not feet and their arms retain the flexibility of human arms.
Their legs on the other hand look vaguely like a mix between human legs and the limbs of a werewolf.
Not even mentioning it’s huge back and their obviously incredible upper body strength but despite having a powerful upper body, long arms and even longer claws it never at ANY point tried climbing anything.

The Hyde is built like something that was intended to be a super predator but stopped and failed halfway through.
Adding to that their apparently genetic aggressiveness, need for a master and even the name of their species.

All signs points towards a creature that was made by the hands of not nature but Men.

Keep in mind that this is the work of the overactive imagination of a young adult who loves fantastical transforming monsters and not an expert on animal behavior or biology.