Exhaustion test

Read carefully the text below:
The next image shows two identically
dolphins. It is used in hospitals to
measure the level of exhaustion at
patients. Look at the two dolphins
jumping out of water. THE
DOLPHIN S ARE IDENTICAL. A
scientific research has shown that in
spite of the fact that the dolphins are
identical, an exhausted person will
find several differences between them.
The more exhausted he is, the more
differences he will find (between the
two dolphins). Look at the picture
below and if you find more than one
or two differences you should have a
break.