Wednesday, January 25, 2012

Tortoises have a hard shells, to grow they must expand from inside their shell, how do they get bigger?

As the internal organs are soft and the shell is hard, how is the shell expanded without generating excessive pressure on their internal organs.

Tortoises have a hard shells, to grow they must expand from inside their shell, how do they get bigger?
The shell is made of bony plates covered with a protein that's similar to your fingernails. The protein covering is flexible.

The bony plates can grow and expand along the edges. As they do, more of the protein covering is secreted. On the upper part of the shell, the protein covering will look like it has "growth rings."
Reply:dont be soft... they grow together.. the shell is living tissue like your finger nails.. unless your daft enough to think its the pressure that makes its head pop out.... unless your on the toilet.. and that turtles head does pop out under pressure
Reply:Your finger and tow nails grow.
Reply:I thought tortoises are reptiles - don't they shed their "skin"?
Reply:Every so often a guy comes round and will upgrade your shell for you for only £11.99 a month
Reply:As someone has said: the shell is tissue like your fingernails (although fingernails are NOT living tissue, but dead (as, incidently, is your hair) and I assume the same for shells).



I think that between each octagon (or is it hexagon?) on the shell there is a join. It is from these joins that the new tissue comes, just as new fingernail tissue grows under the skin where you can't quite see it.
Reply:because it grows at a slightly faster rate than them, nature is wonderful.
Reply:Same as an oyster the shell grows with them a tortoise shell is like your fingernails.
Reply:Had 4 babies hatched four weeks ago ! they grow the shells at the same rate as their insides they are born with shells in tact and are wonderfull to see hatching they should out live as all if things go as they should. I have nine adults who all grow !! outside and inside lol
Reply:I agree with Steve Bob
Reply:Think of it like a child growing up with soft skin around a hard bone (only in reverse).



As everything grows slowly and together, it works.

Textiles

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