radioactive ooze In most versions, the Teenage Mutant Ninja Turtles are created when four baby turtles are exposed to radioactive ooze, transforming them into humanoids. They fight evil in New York City, where they reside in the sewers.

Matt Murdock lost his sight but gained the 360degree radar sense that would make him Daredevil in an accident with a truck carrying radioactive chemicals. Four baby turtles and one old rat were similarly bathed in radioactive chemicals and their mutations began.

Donatello, nicknamed Don or Donnie/Donny, is a superhero and one of the four main characters of the Teenage Mutant Ninja Turtles comics and all related media. He is the smartest and often gentlest of his brothers, wearing a purple mask over his eyes.

The original Teenage Mutant Ninja Turtles animated series that ran from 1987 to 1996 is officially headed to Nickelodeon. Per Variety, the Paramount-owned Nickelodeon - current owner of the TMNT franchise - has secured the global rights to the original '80s television series produced by Fred Wolf Films.

While the mutagen itself doesn't seem to cause pain when it comes in contact with one's body, the mutation process it evokes is typically painful and completes in seconds.

After being severely wounded by Karai, Jennika is transformed into a mutant turtle when Donatello uses Leonardo's blood to give her an emergency blood transfusion. As a mutant turtle, she wears a yellow mask and wields tekkō-kagi.

A mutagen is a chemical or physical agent capable of inducing changes in DNA called mutations. Examples of mutagens include tobacco products, radioactive substances, x-rays, ultraviolet radiation and a wide variety of chemicals.

In most examples, its origin is tied to the Utrom aliens and/or their front company, the Techno-Cosmic Research Institute or T.C.R.I. In many iterations of the story, the mutagen isn't an intentional creation. It's often a result of improper chemical waste.

Raphael Compared to the pious leader Leonardo, the cautious tech-wiz Donatello, and the impulsive party-animal Michelangelo, Raphael is easily the coolest of his brothers with his action-heavy, rule-breaking attitude.

The turtles were each named after a legendary artist – and, of course, all male. Though there were other mutants in the TMNT universe – including the female Mona Lisa, a mutant lizard – the only other turtle for the franchise's first decade or so was the villainous Slash, also male.

And didn't have a real Studio. It was just a mirage they put out the comics independently through their own Mirage Studios. And created a worldwide phenomenon.

Lean more about Leonardo, the oldest brother of the Teenage Mutant Ninja Turtles! Leo is your classic oldest sibling. He's a little bit bossy, but he firmly believes he has everyone's best interest at heart! As the oldest, Leo considers himself the leader of the brothers.