The climate wasn't that different, just a little wetter. Also we don't know what wild dromedaries were like, given that they are extinct for 2000 years now. An

The climate wasn't that different, just a little wetter. Also we don't know what wild dromedaries were like, given that they are extinct for 2000 years now. And the depicted ones were almost certainly wild, given that dromedaries were domesticated only 4000 years ago, well past when the first pyramids were build.