CGYJ writes...

Hello Mr. Greg Weisman,

I have a quick question about Earth-16's Beast Boy. From what I've read, I've understood that Beast Boy needs to see and be in some form of contact with an animal before he can transform into it at any time he wants. Unfortunately, I've also understood that he cannot seem to use this ability to transform into any dinosaurs, and I'm assuming that he can't use it to transform other extinct prehistoric creatures as well. Is there an in-universe explanation as to why such limitations were placed upon the abilities of Earth-16's Beast Boy? Could the limitations in animal transformations have anything to do with animal DNA (perhaps a complete DNA sequence is required for Beast Boy's transformation?) or is it something else entirely?

Thanks for taking the time to reading this posting,
CGYJ