God made them that way
Their shells look like their environment. They blend in by hiding in their shells.
because they are not reuseable like that
they protect themselves with their like rock shells.
Fish Whales Worms Turtles Stars Shells
Sadly they do. Their beautiful shells like to be used for many reasons.
like every other turtles they use their shells for camouflage, to hide, and to protect their selves from praetors.
Many molluscs, such as snails, and also creatures like turtles and tortoises have shells.
A shell does not have a backbone. However, some shells, like a turtles, serve as the backbone.
Giant tortises are just like regular turtles, they all use their shells for protection and shelter.
pebbles as in rock pebbles no there just there like big rocks ...
Turtles are aquatic with webbed feet and flatter shells, tortoises are always on land with flat club-like feet and high shells. Tortoises generally live longer too.
Yes they do, They are not hard like other turtles. But kinda of rough at the same time.