Created in 2011, Miles Morales was originally introduced in Marvel Comics as part of the brand’s Ultimate Universe (a universe parallel to the main Marvel universe a.k.a.
When the Peter Parker of the Ultimate Universe is killed, Miles winds up taking the mantle, though, like any young superhero, struggles to get and handle on things at the start.
At the age of 13 he is bitten by a genetically-enhanced spider very similar to the one that originally bit Peter Parker, and as a result he gains super powers – with some unique abilities including camouflage and a “venom strike.”