Board Thread:Questions and Answers/@comment-65.130.222.229-20130209231901/@comment-6417011-20130310024727

The thing is, though, Leo and Miwa are technically half-siblings... See, in this version of TMNT, the turtles become "half-human" because they came in contact with Hamato Yoshi, a human, and therefore, have some of Hamato Yoshi's DNA. And Miwa is the biological daughter of Hamato Yoshi. So, they both share Hamato Yoshi's DNA, like half siblings do. If this was like the 2003 series where the TMNT aren't biologically related to Splinter in any way (his DNA has nothing to do with their current physiological makeup), then it would be OK. But because they're somewhat biologically related... That's what makes it weird for me, let alone the whole mutated turtle with a human idea.