Board Thread:Questions and Answers/@comment-34129530-20140824132655/@comment-16103541-20150508073155

The day the turtles were born, Leo and Raph raced to be the first to hatch with Leo winning by a few seconds, thus making Leo the oldest and sparking Raph's rivalry with him. Donnie hatched sometime after that. Mikey was born after Donnie, hatching a little late, which would explain why he's a little uh...odd? But still adorable of course. 15 Years later they became the Teenage Mutants Ninja Turtles! And that is the story how the turtles were born, The end.