Biologic evolution

Asari

The shellfish (two piece shellfish) has a lot of features.
When the place where it lives changes,
Asari changes the color on shellfish's surface.


Asari puts out the string from the foot.
It is made not to be thrown into the sea wave by using the string.

There is a possibility that the string is changed into the foot by the biological evolution.
There is a possibility of becoming the starting point of the animal that moves walking. (crab and lobster)

There must be a shellfish that toward the land, too.
The shellfish that went up to land thinks that there is a possibility of becoming the butterfly.