Whom say's?

That everybody says the human is ultra.But Still i m believe something will be there better then human.Even he achieve lot i never accept that human is ultra.Human brain never ready to accept anything beyond it's thinking.No one use his sixth sense because it's not necessary.If he want calculate he can use calc or computer.If he want travel he can use bus or something.So we seldom use our brain.So no body use their brain then wat's the use of brain.Then how can we say human is ultra.As per Darwin theory when the specimen drop to use his body parts often .It will disappear soon...So one day our brain also loss his all sense...So be aware human is not superset..........