>>97061861The radiation from the spider bite mutated with his DNA combining both (the spider evolved to the point of surviving it's radioactivity but transmits part of it in it's venom during biting which has no effect on insects as their body is too small to disperse it), and forced Peter's body into evolving them onto the location where he can best use them; his wrists.
Objectively, spiders look weak. It's position in the animal kingdom means it'll follow a specific type of structure, it's use in the wild is vital for it's survival. It's eight legs are long, flexible, thin and properly segmented for proper balance, 6 or 8 eyes for proper sight, and enough strength to wrap thicker insects in web. Their silk is their evolutionary trait that has allowed them to live sedentary-like lives (depends on species and location , those spiders are several times bigger and thicker, some of those can even catch and eat birds).
Now look at humans: Their position in the animal kingdom has given them a weak look yet enormous potential for survival. Using their legs to tire out prey and their arms to use as and for tools. Standing upright changed muscle structure that allows for balance and power flowing together if used properly, there's entire workouts that involve this. Human arms in particular are powerful tools that are similar to a spider's legs, just following different structure aesthetically.
So looking at this from the viewpoint of evolutionary perfection; combined with the best part of a spider (silk production, wall crawling, sense [which is essentially a spider's ability to feel micro-vibrations in it's web just pushed onto survival instinct], etc.), a human being's body would create web dispensers into the arms, their best and most useful tool. Two eyes, arms and muscle structure, these were improved as well according to the spider's abilities. If the receptors are in his nipples, they link to the wrists.
This is very important to me, I'm drunk.