all the species are as intelligent as they need to be, surely ? They've been around for millions of years and are the success stories, by definition. The only obvious flawed species is man, an example of what happens when a species of life gets too intelligent - it all goes to pot when a species starts wondering why they exist, inventing 'ju-ju man in the sky' stories, then devising ways to exterminate huge nos of people, whilst destroying the air we breathe, land/waters we eat from and stockpiling nuclear waste that has no chance of being stored safely for 20,000 years, let alone the 250,000 years required. Ends in tears I'm afraid.