As far as future animals, look at some of the creatures from The Future is Wild. It was a TV show that ran last year in the US, that detailed what life would be like 50, 100, and 200 million years from now if humans were forced to leave the planet. 100 million years from now isn't all that interesting, but 50 million years is very nice, and 200 million years shows the beginnings of a reiteration of the evolutionary past, with the squibbons showing to be intelligent life in their battle against the megasquids.