Hmmm I had no idea……
"In order to be entitled to copyright registration, a work must be the product of human authorship," says a quote by the U.S. Copyright Office. "Works produced by mechanical processes or random selection without any contribution by a human author are not registrable."
So basically any photo taken automatically cannot be registered unless a human fires the shutter. But what this also means (I’m assuming) is any computer generated content cannot be copyrighted eg auto generated Shakespeare.
Interesting point to know.
Followup posts, including UK law (photographer) and Indonesian law (the country of the monkey.... :)