Told you that did they?
I think it would be more proper to say that they are probably agnostic. Atheists believe there is no God. Agnostics don't have an opinion either way.
Many of the early civilizations. Roman, Greek, Persian, various Chinese and Indian civilizations, believed in many Gods, or revere some (possibly mythical but still human) person.
"(Atheists are retro and share the property with the animal kingdom, who are also atheist."Ironically, since the oldest religions are polytheistic, and Judeo-Christians are proud that they've whittled the number of gods down to one, and since the flowering of atheism seems rather newer than theism, it would follow that the lower animals would be, if anything, pantheistic.Many of the early civilizations. Roman, Greek, Persian, various Chinese and Indian civilizations, believed in many Gods, or revere some (possibly mythical but still human) person.
Perhaps one of the driving forces of human development has been the relentless application of Occam's Razor to all subjects.