The photo below has 2 identical dolphins in it.
It was used in a case study of stress levels.
Look at both dolphins jumping out of the water.
The dolphins are identical.
A recent scientific study revealed that in spite
of the fact that
the dolphins are identical, a person under stress would find
differences in the two dolphins. The number of differences correlate
to the level of stress one is experiencing.
Look at the photograph ,
take your time,
and if you find more than one or two differences,
you may want to take a vacation.