In the IDW TMNT books the scientist at Stockgen said that Slash was Specimen 06. Well since scientists are pretty methodical you would think that means there are 5 more specimens before him...maybe 6 if they started with 00. So unless they were strictly talking about the Turtles, Splinter, and Hob then that means there are 5-6 other mutants that Stockgen still has caged up. So what other kinds of animals would you want them to use?

This might be a bit late, but I'll respond. Firstly, I think that they were talking about the Turtles and Splinter. However if they were not, I'd like to see an alligator (good way to introduce Leatherhead), maybe a snapping turtle and wolf (Tokka and Razhar), snake (it would just be interesting to see), and a scorpion (again, it would be neat to see).

@iragulasuperbia: that could be cool but I'm not so sure we need Tokka. We have a bunch of Turtles already.