Board Thread:General Discussion/@comment-11016223-20130904052318/@comment-14250-20131125022733

The origin of the turtles would vary based on the medium, much like Splinter's would. The general theme is an animal mutates into whatever other species touched it last. Traditionally that was the former human owners of the turtles, not splinter.

In 80s cartoon TMNT and 2013 TMNT where Splinter is human, he could possibly be the human in question who touched them, after which point he touched a rat and then mutagen? Dunno. I don't think the origin specifics of the 2013 turtles has been shown in terms of who specifically touched them to make them humanoid, has it?

>he licks his face all the time like a deranged cyco and karai is not like that at all.

Doesn't lick face but..