2007-09-16 08:11:51 · 15 answers · asked by *smile* 4 in Science & Mathematics ➔ Zoology
A tail is an extension of the spine, so it is very delicate.
A tail is usually used to help keep the balance of an animal so that it can sit on branches and such. This is why a cat can stand on such a narrow surface, and may be why they always land on their feet.
They have a tail because there is no reason not to have one, there are some people that are born with tails, it's not necessarily odd... We all used to have tails...
2007-09-16 08:15:55 · answer #1 · answered by coopyey 3 · 2⤊ 0⤋
Based on the laws of physics, there are quadrupeds that need balance. Even tad poles start with tales, but if not needed for particular body structures, then the tail simply is not needed throughout evolution.
Humans start off looking like tad poles with a tail.
2007-09-16 08:17:08 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The dna gene message tells the cells to form a tail. The tails function I believe is balance.
2007-09-16 08:16:28 · answer #3 · answered by kim 7 · 1⤊ 0⤋
there are so many reasons why they grow tails here are a few, balance, protection(from bugs mostly), lots of animals use it as a weapon there are more but i don't have that much time
2007-09-16 08:17:53 · answer #4 · answered by itsagirl!! 4 · 0⤊ 0⤋
Why do people NOT grow a tail?
2007-09-16 08:14:00 · answer #5 · answered by Anonymous · 2⤊ 0⤋
Well animals tails help them to balance...
hope i helped
2007-09-16 08:14:33 · answer #6 · answered by Anonymous · 0⤊ 0⤋
For some like the cat and monkey it's for balance. Dog's i think just needed a tail to wag for us to see they are happy ?? lol
2007-09-16 08:14:17 · answer #7 · answered by Anonymous · 0⤊ 0⤋
on many animals it is a source of balance, primates can use theres for hanging in trees, and some tails can be used as a weapon.
2007-09-16 08:16:27 · answer #8 · answered by Ricky H 4 · 0⤊ 0⤋
They are just born with it. The tail is actually their spine and it helps them keep balance.
2007-09-16 08:15:22 · answer #9 · answered by Anonymous · 2⤊ 0⤋
In my observation they use it for balance, some use it to swat flies and some use it as a blanket when they sleep.
2007-09-16 08:16:52 · answer #10 · answered by granny_sp 4 · 0⤊ 0⤋