Optic Illusion

Here's a challenge for you. How fast can you find the dogs in the picture below? The strange thing is, that men mostly do this much faster than women.

Average time for men: 1.23 seconds
Average time for women: 12.46 minutes (!)

SOME COMMENTS FROM PEOPLE THAT HAVE TAKEN THE TEST:

"I didn't see any dogs, and I stared at the picture for at least 10 minutes."

"I think it's one of those pictures, where you have to focus at a certain point to see the real image... This things never work for me, I think I'll have to try again later."

"I almost didn't find the dogs at all!"

"Is there a dog in this picture? Where?"

"This has to be a joke. There's no dogs here."


CLUE: The dogs appear to be white with black dots.
Ready? Good luck!!