To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most ...

To celebrate Scientific American ’s 180th anniversary, we’re publishing a jigsaw every weekday to show off some of our most fascinating magazine covers over the years. Take a tour here through the ...

This cover says clearly that it’s a science magazine and camels mounted with gatling guns are the main topic of this issue. And the image of that camel and that gatling gun totally sells the story.

Though the idea of touching traces of HIV-positive blood may spark a visceral reaction of fear or revulsion, the magazine assures readers that the cover itself is "100 percent safe" to handle.

A DePauw University biology professor is a co-author of the cover story in last week’s issue of Science, a leading publication about scientific discovery. Philips Akinwole, assistant biology professor ...