Alphas have some additional vision capabilities over Betas.


In Tattoo, Derek is able to see the ink of Scott's healed tattoo when his eyes glow, suggesting x-ray, or infrared vision, assuming the tattoo would somehow change the heat signature.


Derek confirms he can see infrared when Chris Argent helps them track Vernon Boyd and Cora Hale in Fireflies. Chris tosses Isaac, Scott and Derek infrared goggles, and Derek replies, "Thanks, got my own," and flashes his eyes.