Biologic evolution

It is a photograph of this morning.
Seawater was replaced.



Because the amount of the seawater newly put was large
Mussel's position of the surface of the water has become deep.



The water pipe is extended.
It might be called not the water pipe but the stalk.
The name writes, "Stalk" for the uncertainty because it is not
described clearly in the reference book.



The stalk is extended.



The mussel moves little by little with the stalk and Tait.
It can be thought that the stalk does the role of the sucker.
Tait supports only this one mussel (figure of B).
The shell opens and shuts when the stalk pulls the shell to the
surface of the water.
It is thought that Tait is cut by the shell when opening and shutting.



The stalk goes out of the surface of the water (figure of A).



The stalk is put in the shell.
It was able to be confirmed that Tait was put on the position of A at
this time.
It can be confirmed that Tait of B slackens.

The mussel completes the movement in the vicinity of the surface of the water.


The moving distance was able to be confirmed from the mark of Tait
last night.
Travel time was 30 minutes.

It has been understood that Tait goes out of the stalk.
In the stalk, it was a mistake to think that the hole was not open.
Moreover, the purpose what the stalk does has understood today.