Question: do you think dinorsors will ever re-evolve?

Jim Caryl answered on 18 Jun 2011:

(Un)fortunately not.

The various steps in evolution are so unpredictable, or so improbable (they only had to happen once or twice), and are so dependent on the very particular environments that were around when the ancestors first evolved, it is always been said that if you were to re-wind the clock and start the whole of life over again, and allow it to evolve, you would be unlikely to see the exact things again.