I’m not sure exactly how it works, but this is amazingly accurate. Read the full description before looking at the picture.
The picture below has 2 identical dolphins in it. It was used in a case study on stress level at St. Mar’s Hospital.
Look at both dolphins jumping out of the water. The dolphins are identical. A closely monitored, scientific study of a group revealed that in spite of the fact that the dolphins are identical; a person under stress would find differences in the two dolphins. If there are many differences found between both dolphins, it means that the person is experiencing a great amount of stress.
Now look at the photograph below and if you find more than one or two differences you may need a Holiday…
See You On Holidays…
No I didn’t see any differences but I thought they were both Cows.
Freedomborn 
I don’t see any differences. I thought they were just eating grass.
LikeLike
Love it…. but of course you are right nuvofelt, although to be honest I didn’t know that dolphins ate grass until you pointed it out but yep they sure do.
Christian Love Anne
LikeLike