Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

Based on evolutionary theory humans could be related to simians in many ways. If this is true why is it that when a human does not cut his/her head hair, it will continue to grow? Why is it that monkeys do not need to cut their hair? It seems that their hair has a determinate final length.

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

Good question. Why do gorillas (the largest of the great apes) have the smallest penis?

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

evolution would explaine this

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

because we never evolved or any thing like that. apes, monkeys, etc. are not related to us so that question is not even relevant!

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

human body hair is similar to ape body hair (although the other apes have more of it). it grows for a few months, then the hair follicle becomes dormant and the hair is shed. head hair is a bit different - it grows faster and is shed less often, for both of these reasons the hair is much longer than body hair. other apes don't have head hair, which probably arose in the human lineage as a result of sexual selection.

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

because of genes....

Why are humans able to grow excessively long head hair whereas ape-like creatures can not?

According to a book titled The Red Ape, the orangutan is

also capable of growing long head hair. This book promotes

the orangutan as being more closely related to humans than

the chimpanzee. Its author is well aware that he is challenging a deeply entrenched idea, but he gives a rather

persuasive argument in favor of his alternative.

Monkeys are too distantly related to humans to be of much

relevance. Only the large apes - gorilla, orang and the two

chimps - are near enough to us to be pertinent.