Leaders take note: A new study of gelada monkeys indicates that being the top dog—or in this case, top monkey—is even better if the alpha male occasionally concedes to subordinates.

More than two million Americans are diagnosed with skin cancer each year, and some 50,000 will be diagnosed with melanoma, the most serious kind. Regular skin checks can help people discover melanoma in its earliest stages. That’s easier than ever now, thanks to a free app developed at the University of Michigan Health System.

University of Michigan physics researcher Jörg Dietrich and a team of scientists are the first to detect part of the invisible dark matter skeleton of the universe, where more than half of all matter is believed to reside. The discovery confirms a key prediction in the prevailing theory of how the universe’s current web-like structure evolved.

Related: As predicted, U-M researchers help find Higgs-like particle.

It’s one thing to build a cool brand, says CrowdRise co-founder Robert Wolfe. But it’s even better to build a cool brand about giving back.

Scientists create six new stem cell lines; the most important part of the health care ruling you haven’t heard about; U-M researchers find the elusive Higgs boson; researchers examine head injuries and premature brain aging; a look at the straight media’s coverage of gay pride; study shows most Americans earn more than their parents, but only a third rise in income class; dead zone pollutant grows despite decades of work; dogs may protect kids from infection.

“I forget that this is weird,” says urban farmer, entrepreneur, and alumna Carolyn Leadley, sitting in the shade of a mulberry tree next to her large market garden on Detroit’s east side. Leadley and husband, Jack Van Dyke, are working the land while working a hypothesis: Can urban agriculture be a viable business?

U-M has been represented in every Summer Olympic Games since 1900. This year 26 current or former Michigan coaches and athletes will be going for the gold in London.

Swedish native Raoul Wallenberg was a typical U-M student in 1935. But after graduation, he followed a path that was anything but typical. This World War II hero rescued close to 100,000 Hungarian Jews from the Nazis.

In this month’s column, Victor Katch reports regular physical activity helps build a better brain.