Ramadhan
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This isn't an original question, and it's frustrating that these same questions are asked over and over again even after they've been answered. I'm not dodging the question though, as it's a decent one:
The question may have been asked before, but has it been resolved and answered satisfactorily? I think not.
First of all, there are not 'billions' of species, more like millions.
The estimates for the number of existing species wildly range from 3 - 100 millions, 1.6 millions of which have been named/discovered.
So surely there must have been billions of species that ever existed on earth in the past 3.5 billions of years.
how many features can you really list that are completely unique to humans?
Physically, we are 'holomorphic' to countless other animals; and even many of our mental characteristics are not unique - other animals exhibit emotions (such as attachment, sorrow, and loneliness) plus altruism. Many animals cry out when suffering. Language is not unique to us. And many animals are amazing at problem solving (chimpanzees and even birds have outsmarted humans in solving certain problems!)
However, I of course don't deny that (despite the adorable, painting elephants), humans are the only ones with an appreciation for art, and we have the most complex language.
You can claim that animals posses similar mental characteristics as humans. But the facts do not support your claim.
animals may "cry out" when hurt, but humans are the only creatures that "cry" tears of emotion.
there are examples of animals displaying some intelligence, but are they anywhere near humans? why is that the intelligence levels of dolphins and chimnps are similar with each other, although aside from being mammals, they are nowhere similar? Why is chimps level of intelligence not closer to humans?
Language is not unique to us? Animals may have some sort of sound codes to communicate extremely simple and limited ideas with each other, but true language? I think not.
I don't know why you can't admit that human mental capacities are truly unique.
But the most amazing characteristic of humans is our ability to reason and rationalise. So the question is: how is it that we can rationalise but others cannot? The answer is of course that our brain (in particular the cerebral cortex) has swelled up - it's massive. You might say 'ah! Well that's unique!' but no, not really. All mammals have a cerebral cortex, ours is just the largest.
so how did human brain suddenly increase it size twice in such short period of time? why didn't chimps and gorillas?
And then why, after suddenly became so big, modern human brain size just stopped growing?
why couldn't sharks which have been around for hundreds of millions of years could not grow their brain size by one bit?
Why is human the only creature that have highly developed mental capacities?
you then asked why we're so much smarter than other animals, why aren't there others as intelligent as us? Well that's like asking why is there no animal that can travel faster than the Peregrine Falcon?
ONE animal has to be the fastest, just like one animal has to be the smartest. That animal is us. But then you might ask why our brains are so much bigger than others. But again, it's not that bizzare. The Peregrine Falcon can fly at about 200 mph, whereas the second fastest animal (the spine-tailed swift) can fly at only 100mph. If you were a Peregrine Falcon, you'd be arguing 'god must have created ME because I'm not only a bit faster than you, but TWICE as fast!'
I am starting to doubt your sincerity when claiming you regard FACTS as your number one priority. Certainly in this case, you are very loose and lax with facts. The Peregrine Falcon is only fastest when in hunting dive mode, that is, when diving down vertically aiming for a prey. Peregrine falcon is not even among the top ten fastest birds in natural flight.
Saying peregrine falcon is the fastest bird would be like saying humans can run faster than horses because usain bolt can run 9.5 seconds in 100 m.
I am also surprised you, again, make analogy which are not equal. Are you really saying that difference in mental capacity between man and chimps is as meaningless as the difference between the flight speeds of birds?
Also, if you are saying that human brain is not really remarkable, then why the brains of chimps and gorillas are so similar with each other but both are so different than human? After all, according to theory of evolution, humans are in the apes family right?
human brain is not even twice the same of a chimpanzees!!
I am SHOCKED!!!
Are you sure you are an evolutionary biologist?
The average size of human brain is around 1,400, while chimps' is around 400 cc. If I do my math right, that is around 3 times larger!
Not to mention that human brain has a structure which is a lot more complex and so different than chimps, gorilla or orang utan, whose brains are similar with each other.
Here's something else to ponder (maybe it's also unoriginal for you):
why do people have complete faith in evolution of prokaryote --> human when there is no direct evidence, and yet have absolutely no faith in God the Creator when logic tells that God must certainly exist and the evidence and signs are so overwhelming and everywhere.