Perhaps 'werewolves' are a shapeshifter species that learned to mimic humans, not actual humans? It more plausible that human species isn't entirely composed o

Perhaps 'werewolves' are a shapeshifter species that learned to mimic humans, not actual humans? It more plausible that human species isn't entirely composed of biological humans than some magical transformation to a specific animal and back. https://en.wikipedia.org/wiki/Mimic_octopus https://en.wikipedia.org/wiki/Mimic_octopus