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And the Chimp war
Some animals clearly have intelligence and ability to form complex society and develop further - possibly. But since we dominate the earth now and most animals are either living in zoos, farms, huntable fields, or just dying due to shrinking territory, it has simply become impossible, e.g. for chimps to form clans of hundreds and do what they please without human involvement.
This may sound funny but it took humans millions of years to evolve from brainless drooling creatures, and if you leave a baby growing up in the wild it'd end up no better than monkeys.
What do you think? I say we should set some forbidden area for wild animals to evolve (maybe leave them TVs). It could result in something very interesting after another million years and we might actually witness how a prototype society evolves.