to protect them .so they dont float away
Periwinkles need shells to protect themselves from desiccation and predators when the tide goes out. The shell acts as a barrier against the harsh environmental conditions of being exposed to air and sunlight, helping to retain moisture. Additionally, the shell provides physical protection from potential threats, such as larger animals. This adaptation is crucial for their survival in intertidal zones where they experience fluctuating conditions.
Snails, top shells, cones, sundials, tiny augers, Florida augers, murex, olives, tulip shells, cowries, periwinkles, and limpets
... common shells found in the ocean or rivers. There are also flowers called "periwinkle" one species is European, another from Madagascar.
Periwinkles will out grow their shells, another creature will then take that shell and the periwinkle will take another old shell. This is an example of symbiosis. :)
Periwinkles eat microscopic algae and plankton.
Periwinkles live in groups, just like mussels, to retain moisture.
Periwinkles survive in extreme colds because they are part of the evergreen family.
yes
atlantic ocean
humans aliens bugs
Blue periwinkles a stuck onto rocks by a string of dried mucas which acts like a glue.
Periwinkles typically grow along rocky shorelines, tide pools, and in salt marshes. They are commonly found in temperate regions around the world. Periwinkles thrive in intertidal zones where they can feed on algae and other plant material.