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How the Turtle got his Shell
Posted 7/13/09
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Scientists have revealed a spectacular insight into turtle evolution - how the unique animals get their shells.

A Japanese team studied the development of turtle embryos to find out why their ribs grow outward and fuse together to form a tough, external carapace.

Reporting in the journal Science, the researchers compared turtle embryos with those of chicks and mice.

They found that, as turtles developed, part of their body wall folded in on itself forcing the ribs outward.

The team of researchers from the Riken Center for Developmental Biology in Kobe, Japan, described the turtle shell as an "evolutionary novelty".

It represents such a leap from the soft-bodied ancestors that turtles share with mammals and birds, that scientists have long puzzled over how exactly it came about.

"Other groups have looked into why the shoulder blade in turtles is encased inside the rib cage," said Olivier Rieppel from Field Museum in Chicago, an expert in reptile evolution who was not involved in this study.

"That makes them unique."


I found that quite interesting, As i love turtles.
Posted 7/13/09
~at first i thought this thread was sex-related lol

but the story is sweet & cool
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Posted 7/13/09
Oh, that's cool! Turtles are so cute. 8)
Posted 7/13/09

mystic17 wrote:

~at first i thought this thread was sex-related lol

but the story is sweet & cool


Nah, I don't think shells are sex related.
Posted 7/13/09

marumo-kun wrote:


Nah, I don't think shells are sex related.


good for you then i did hear from a comedy bit, making the turtle & the shell seem perverted though =T
Posted 7/13/09
lotta words..
summary plz ~
Posted 7/13/09

-Turbo- wrote:

lotta words..
summary plz ~


Haha.
Simply explains how turtles got their shells.
When they're born, The bones form into a sort of shell.
Posted 7/13/09

mystic17 wrote:


marumo-kun wrote:


Nah, I don't think shells are sex related.


good for you then i did hear from a comedy bit, making the turtle & the shell seem perverted though =T


Oh? Which comedian?
Posted 7/13/09

marumo-kun wrote:


good for you then i did hear from a comedy bit, making the turtle & the shell seem perverted though =T


Oh? Which comedian?

king of the hill lol~ that episode where peggy got her own guitar
Posted 7/13/09

mystic17 wrote:


marumo-kun wrote:


good for you then i did hear from a comedy bit, making the turtle & the shell seem perverted though =T


Oh? Which comedian?


king of the hill lol~ that episode where peggy got her own guitar

Ah.
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Posted 7/13/09
Ah, the amazing yet ultimately useless things you learn when you ask "why" and "how". I could stand to learn a little more. Though I suppose the evolutionary aspects would be purely speculative.
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Posted 7/13/09
can anyone here name me an animal or anything that living except plant that doesnt have a way to defend themself?
Posted 7/13/09

Expires wrote:

can anyone here name me an animal or anything that living except plant that doesnt have a way to defend themself?


krill and other tiny fish.
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Posted 7/13/09 , edited 7/13/09
Not true, tiny fish swim in schools. Krill molt as a decoy.

I don't think there is an animal without a defense mechanism. Those that didn't adapt one to fend off predators would have gone extinct.
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Posted 7/13/09

marumo-kun wrote:


Expires wrote:

can anyone here name me an animal or anything that living except plant that doesnt have a way to defend themself?


krill and other tiny fish.


defense mechanisms include the krill’s ability to instantly molt, in which they leave behind their floating exoskeletons as a decoy to confuse predators. you saying tiny finish is too broad be specific
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