2006-11-28 20:18:24 · 10 answers · asked by bijoy.meethal 1 in Science & Mathematics ➔ Biology
I don't know, I once read an article about human parts that are now useless, but at one time they were useful. This article said that humans used to be able to control their ears similar to alot of animals, like cats for example, to distinguish more clearly the direction from which a sound came.
2006-11-28 20:22:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
WELL DATS SIMPLE .. YOU KNOW DAT HUMANS EVOLVED FROM RUMINANT ANIMALS. IT IS THOSE ANIMALS WHO CAN CONTROL THEIR EAR MUSCLES [EAR PINNA]...But during the course of evolution we have lost the control over our ear muscles and it has turned vestigial...just like our appendix. SO we r not able to control our ear muscles like other organisms. But sometimes you must have noticed that their are people who can slightly move thier ear muscles. It is due to a phenomenon called ASTAVISM..sma thing that explains the appearance of a small tail at birth in some babies
2006-12-02 23:14:18 · answer #2 · answered by Krish 1 · 0⤊ 0⤋
Because as you might be aware that we are humans and do not depend on a strong hearing sense like animals do to run away from dangers . This function is only noticed with all land animals.
2006-11-29 04:22:07 · answer #3 · answered by peter 2 · 0⤊ 0⤋
HI FRIEND!! ACCORDING TO ME WE DO NOT REQUIRES TO MOVE AND IT'S ALSO AN "VESTIGIAL ORGAN" AND OUR PINNA CAN COLLECT SOUND WAVES IN PROPER MANNER AND IN SUFFICIENT AMOUNT WHICH CAN BE PASSED TO PART OF MIDDLE EAR!!."BUT BUT BUT SOME PEOPLE CAN ALSO MOVE THE EAR MUSCLE!!"
2006-11-29 13:08:51 · answer #4 · answered by unknown00xcool 2 · 0⤊ 0⤋
Probably because you don't have motor nerve fibbers that are connected to you ear muscles.
2006-11-29 04:41:44 · answer #5 · answered by AYKAU777 2 · 0⤊ 0⤋
by practice you can move any of your muscles you can't say control cuz our body control every thing inside...
2006-11-29 04:22:34 · answer #6 · answered by Stalwart 4 · 0⤊ 0⤋
Because we forgot a thing called 'listening' to others long long time ago. LOL.
2006-12-02 16:26:06 · answer #7 · answered by ECQC 3 · 0⤊ 0⤋
I can wiggle my ear sideways, upwards and downwards without any difficulty.
2006-11-29 04:30:13 · answer #8 · answered by Krishna 6 · 0⤊ 0⤋
we're not? can you smile? you use ear muscles when you do that
2006-11-29 04:19:18 · answer #9 · answered by nanabe 4 · 0⤊ 0⤋
because the are involuntary
2006-11-29 07:53:23 · answer #10 · answered by Lyf's HeCtIC!!!!!!!! 2 · 0⤊ 1⤋