I think that turtles and snails have shells so they can protect there self from other animals.
add. The invention of the shell by snails and such was a major advance in evolution, for it provided a rigid part to which muscles could be attached. This provides superior locomotion. As above, this also provides protection from enemies.
The turtles are a different case, for these guys already have a skeleton to which muscles and articulation is attached. Their shell is a continuation of their body, not merely a separate case. So they may be considered to have both an exoskeleton and an endoskeleton.
Larger animals such as Rhino's and Hippo's also have very toughened skin almost forming an armour plate for protection.
Snails have soft bodies and are protected by shells, which are the characteristics of molluscs.
A snail is referred to as an invertebrate because it has no backbone.
A snail is NOT a reptile - it's a MOLLUSC.
They are not reptiles, but they are not all herbivores either. Some snails are carnivores. Animals are not divided into reptiles and herbivores and some reptiles are herbivores.
=snails are slimy because they have snot.=
They are not. They are mollusk
A snake is a reptile. A snail is known as a mollusc.
it is a Amphibian... A frog is an amphibian, not a reptile.
No, a frog is not a reptile. It is an amphibian.
A turtle is a reptile - NOT an amphibian.
amphibian
amphibian
A salamander is a amphibian.
Reptile.
No. A snail is a mollusk.
amphibian
A python is not an amphibian, it is a reptile.
reptile