Well, If you are talking about like an armadillo then that is one.
There are-
Shellfish
hermit crab
(normal) Crab
Snail
Armadillo
It is in the clock and it is the shell of a turtle
a turtle is a reptile with a shell . So is a Tortoise ! A tortoise is also a reptile with a shell !
A tortoise or turtle.
how can you tell the difference between a tortoise and a turtle by shell in picture
A turtle. and define what you are thinking is a "protective shell"
The underside of a turtle or tortoise's shell is called the plastron.
Unfortunately, it is a myth that turtles and tortoises can leave or change their shells. The shell is actually a hard, protective covering over the turtle or tortoise's ribs. So if you find an empty tortoise shell that means that that tortoise has died and decomposed.
A turtle or tortoise's shell has two parts; the top domelike piece is called a carapace. The bottom is called a plastron.
A turtle or tortoise
that depends on what kind of tortoise or turtle you are talking about
No. A tortoise and a turtle are the same animal. People make the distinction based on the locations where they generally live. There will be a slight difference in their shells because they live in different environments but there will be no major differences.
Yes tortoise are much bigger and heavier then turtles.