User blog comment:BastionMonk/No feathers in JPIV/@comment-70.49.0.87-20130413123754/@comment-11047508-20130413214924

They could do this, but I think it would be very lame. It is very easy to put in a feathery species into the film.

Furthermore, Wu only used frog DNA when the code was likely identical to that of dinosaurs. Scientists once replaced and eye gene of a fruit fly with an eye gene of a mouse. The fly got normal fly eyes with that mouse gene.