visual illusion site

Well... I'll bet it's true but,

"Scientific research showed that children can't recognise erotic scenes.
Instead they see 9 dolphins.
On the other hand, adult's mind is rather "corrupted" so adult person may have problems spoting 9 dolphins at first eye glaze.
If you have trouble spoting dolphins in the first 6 seconds, then your mind is heavily corrupted, and you are seriously obsessed with sex!"

doesn't exactly convince me.
There are some pretty neat illusions on the rest of the site.