Human Powers?

We know what Peter Parker got from the spider... but what, if anything, did the spider get from Peter Parker?

Dead?

Well, that's no fun.

acne

Peter Parker wasn't radioactive.

Cold sores.

Male pattern baldness

Myopia and two weaker, slightly less hairy legs growing from under its abdomen.

Unstable emotions and... interesting... dreams that required changing the webs after waking up, before mom and dad see. (Peter was a teen, you see....)

A strange urge to wear unusually large glasses?

It woke up and it's parents were dead, then he had to go live with his aunt and uncle then his uncle died, then his girlfriend died, then his bestfriends dad turned pschyo, then his bestfriend died.

Humanity's gimmick, so to say, is our brain power. We're the smartest critter we know of, and we used that to conque the world. So any animal bitten by a radioactive human would, in comic book science, gain intelligence comparable to a human.

Comic book science is fun.

Book smarts.

In that, the spider now knew which books to avoid getting smushed with.

The spider became a nerd with glasses and a pocket protector.

Another of humanity's gimmicks is endurance, surprisingly enough. We may not be especially fast, but we can run forever, comparatively. Persistence hunting is still in use by Kalahari bushmen, among a few others, who can chase prey for up to 4 hours until it simply collapses out of exhaustion.