I read this in a book and never got an answer, so I went to the zoo but the reptile guy wasn't there. It's a trivial question, I know but it's really bothering me.
2007-06-27 17:12:01 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
.... do they even have spines? do they NEED them?
2007-06-27 17:19:23 · answer #1 · answered by dollyr0cka 2 · 0⤊ 2⤋
Its spine is permanently attached to its upper shell and is immovable. When its head retracts, its cervical (neck) vertebrae bend into an S-curve.
2007-06-28 00:48:40 · answer #2 · answered by PaulCyp 7 · 3⤊ 0⤋
a turtles spine cannot contract or bulk, it is fused with his shell. which is immobile. i suppose he just uses neckmuscles. to stretch the neck vertibrae in and out.
2007-06-28 07:57:14 · answer #3 · answered by mrzwink 7 · 0⤊ 0⤋
they bend the neck to bring the head in.
check out this link, most other turtles have the same skeletal structure, just the shell have different varieations
http://www.euroturtle.org/bones/skel.htm
2007-06-28 00:38:38 · answer #4 · answered by Bio-student Again(aka nursegirl) 4 · 1⤊ 0⤋