This punch could’ve turned out a lot worse for the gentlemen on the ground. (Gian Ehrenzeller/EPA)

Here are five ideas that affect the way we live, work and play.

1. Men’s faces evolved to protect them in physical fights. Via Terrence McCoy:

The male human evolved to look the way he does, scientists say, because such bone structure confers a high degree of protection during a fight. … “When modern humans fight hand-to-hand the face is usually the primary target,” said [David] Carrier, a biologist at the University of Utah. “What we found was that the bones that suffer the highest rates of fracture in fights are the same parts of the skull that exhibited the greatest increase in robusticity during evolution. … These bones are also the parts of the skull that show the greatest difference between males and females. … In other words, male and female faces are different because the parts of the skull that break in fights are bigger in males.”

Bruce Campbell stands near his Boeing 727. (Steve Dipaola/Reuters)

2. When a Boeing 727 becomes a home. Via Reuters:

Complete with wings, and landing gear resting on pillars, it is where [Bruce] Campbell spends six months of the year. In 1999, the former electrical engineer had a vision: To save retired jetliners from becoming scrap metal by reusing them. Slightly built and with a charming smile, the 64-year-old Campbell sees the task as part of his goal in life. “Mine is to change humanity’s behavior in this little niche,” he said as he stood beside the plane, lamenting the need to power wash its exterior and trim the dense foliage. Campbell is one of a small number of people worldwide – from Texas to the Netherlands – who have transformed retired aircraft into a living space or other creative project.

Bruce Campbell brushes his teeth at a sink in his Boeing 727 home in the woods outside the suburbs of Portland. (Steve Dipaola/Reuters)

3. A reinvented six-pack. [photos hereVia PSFK:

This new beer holder was honored at the A’ Design Award & Competition — an international packaging design event. Coined the Leuven, the innovative design differentiates itself from competitors with striking structural components. Inspired by an ice bag, the packaging features two panels with Velcro that secure the vacuum sealed PET bags. … Its minimalist design and lightweight materials make the package easier to carry than the typical 6-pack. It’s also surprisingly durable and costs less to produce.

4. Apple to aid the privacy of shoppers. Via Hayley Tsukayama:

Retailers have kept tabs on consumers by tracking the unique code that smartphones send out when trying to connect to wireless networks, known as a MAC address. Under Apple’s new system, the code will be randomized, making it impossible for stores to identify iPhone users in this way, though phones running other operating systems would still be trackable. … Retailers have used this information to find out how often a customer visits a store, or to get an idea of how many customers pass by their storefronts. Nordstrom ended a program that tracked these codes in stores after an outcry from privacy advocates.

5. Facebook getting involved in mobile payments? Via TechCrunch:

Facebook doesn’t show ads in Messenger or WhatsApp. Instead, payments could be the key to earning money on chat, especially in the developing world where ad rates are low. If that’s the strategy, Facebook just got the perfect executive to lead the charge. It’s poached PayPal’s president David Marcus to run its Messenger unit. Facebook hinted that Marcus would be looking outside of ads for how Messenger could bring in revenue, writing in its announcement of the hire that “David is a widely respected leader in the technology industry with a track record of building great products and finding creative ways to turn them into great businesses.” … Marcus joined PayPal three years ago when it acquired his mobile payments company Zong for $240 million in cash. Zong let users buy things online through carrier-billed mobile payments.