if you tell me that two different animals share so much of their DNA and are still called different animals
then why cant it be possible for a man to be a man and an Ape to be an Ape no matter how similar he looks to a human
And intelligence and social behaviour is not an indication that those fossilized apes were our relatives

why? because Dolphins on an average have an higher IQ than humans
and Social behaviour similar to ours can be seen throughout the animal kingdom, even in birds infact.