Lady Meerkats Make More Testosterone Than Males

Two female meerkats, mid-beef. Image Credit: Charli Davies, Duke University

 
They’re unpleasant. They’re uncooperative. And they’re unwilling to share.* Testosterone-fueled bad behavior is as common in meerkats as it is among other animals. But there’s one major difference: In meerkat society, scientists say, it’s the females doing the misbehaving. A report on their misconduct, and its implications for their health, was published in the journal Scientific Reports.

Meerkats are intensely social animals. They live in tight-knit groups of up to 40 or 50 animals and do everything collectively, from hunting and sleeping to raising pups. They maintain order through a strict hierarchy led by a fierce matriarch and her subordinates. Meerkat matriarchs are notoriously self-involved, but other females are not much sweeter. They, and not the males, are the growlers, the biters, the brawlers, the food-swipers, and the warmongers—all identities traditionally associated with high levels of testosterone.

To find out if the females’ bad attitudes were linked to this so-called male hormone, researchers collected blood and poop samples from 93 wild meerkat males and 91 females on the Kuruman River Reserve in South Africa. The meerkats there are habituated to scientists, which made it no big deal for the team to catch them, anesthetize them, and take a little blood. They’re also clearly tagged with individual dye markings, which made it easier for the researchers to tell who was chasing (or being chased by) whom.

They’re going to a rumble. (No, really. They are.) Image Credit: Kendra Smyth, Duke University

 
As anticipated, the blood tests showed a stark difference in hormone levels between male and female meerkats. The females’ blood boasted much more testosterone than the males’ blood did—in some cases almost double. Levels of testosterone and related hormones in females were closely linked with their place in the hierarchy. This was less true for males, whose hormones were more likely to fluctuate during mating periods.

A testosterone-charged life doesn’t come without its costs. For meerkats, as with other animals, this may mean a compromised immune system. They combed through the meerkats’ feces and counted the number of parasite eggs they found in each sample. The higher a female’s testosterone level, the higher her parasite count—and the weaker her immune response.

Riding high on testosterone may not make a lady meerkat popular, and it may not make her healthier, but all that jerk behavior could just give her—and her kids—a competitive edge.

*National Geographic appears to have gone for a slightly different tagline.
 
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October 24, 2016 – 10:30am

Newsletter Item for (19940): 7 Burning Halloween Questions: Answered!

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7 Burning Halloween Questions: Answered!

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As you put the finishing touches on your costume and stock up on candy for the neighborhood kids, let’s take a minute to reflect on the origins of these and other Halloween traditions.

1. Who started Halloween?
Halloween got its start thousands of years ago, and we can thank the Celts for getting things going. They celebrated a holiday known as Samhain on October 31st, the Celtic new year. They believed that the dead could walk the earth on Samhain and cause mischief but, on the plus side, their

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7 Burning Halloween Questions: Answered!

Newsletter Item for (19822): 7 Burning Halloween Questions: Answered!

Headline: 

7 Burning Halloween Questions: Answered!

mfna_dek: 

As you put the finishing touches on your costume and stock up on candy for the neighborhood kids, let's take a minute to reflect on the origins of these and other Halloween traditions.

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mfna_eyebrow: 
List
mfna_real_node: 
7 Burning Halloween Questions: Answered!

10 Facts About France

France, known officially as the French Republic, comprises the landmass south of the United Kingdom, separating Spain and Portugal from the rest of Europe. Widely recognized for awe-inspiring architecture and gorgeous countrysides, France is also frequently spoken of for its destinations such as Paris and the Palace of Versailles. The country is also notable for its prominence in the Hundred Years’ War, its assistance and continued allegiance to the US, and the tremendously influential French Revolution. The fascinating landscape of France doesn’t stop there, so read below to learn some more facts about France, including the country’s origins and record-holdings.

The post 10 Facts About France appeared first on Factual Facts.

14 Slimy Facts About ‘Double Dare’

filed under: Lists, Pop Culture, tv
Image credit: 

Some game shows will reward you with cars and cash prizes for being smart and intuitive. Nickelodeon’s Double Dare, which ran from 1986 to 1993 and taped more than 500 episodes, gave its kid contestants bicycles or boom boxes in exchange for fetching giant balls of snot from oversized noses.

To celebrate the show’s 30th anniversary, and with a new special set to air on Nick on November 23, we thought we’d drop some facts on the show’s history, the comedian originally set to host, and how one kid wound up snapping a bone in half on the perpetually hazardous course.

1. IT WAS INSPIRED BY MOUSE TRAP.

While kicking around ideas for a kid-oriented game show, Nickelodeon executive—and Double Dare co-creator—Geoffrey Darby recalled that a staffer brought up the classic board game Mouse Trap, which invited players to lure a (fake) mouse into a custom-built holding pen. Darby picked up on the thread, pitching the series as a Rube Goldberg machine that used people instead of balls.

2. DANA CARVEY WAS OFFERED THE HOSTING GIG.

Before settling on onetime magician Marc Summers, Double Dare looked at hundreds of host candidates. Soupy Sales, a comedian who had a popular kids’ show in the 1950s, was considered; so was Dana Carvey, who was reportedly offered the job on the same day he was invited to join Saturday Night Live. He opted for the sketch show, leaving the slot open for Summers.

3. THE VERY FIRST OBSTACLE COURSE WAS A DISASTER.

For the uninitiated, Double Dare typically pitted two teams against one another in a series of increasingly difficult—and disgusting—challenges, culminating with a run through a slime- and cream-covered obstacle course. When the show taped its first episode in September 1986, producers directed the contestants to find a flag hidden in a giant bag of feathers. Unfortunately, no one had bothered to hide the flag. On take two, the contestant was so rough with the feathers they didn’t see the flag had been gently placed within easy view. On the third take, a cameraman fell into the frame. They got it on the fourth try.

4. THE SET HAD ITS OWN SEWAGE SYSTEM.

Double Dare/Facebook

Although Double Dare began on a studio set at a Philadelphia television station, it eventually moved to Nickelodeon’s home base in Orlando, Florida. The stage—which was usually filled with tourists visiting Universal Studios Orlando—was built specifically to accommodate the overflow of disgusting waste material created by the production. A sewage system allowed crew members to mop the glop off the floor and directly into grates. The “clean team” went through between 600 and 1000 towels per taping to erase any residual signs of slime.

5. THE STAGE WAS A TOTAL SLIPPING HAZARD.

No matter how much the crew steam-cleaned, vacuumed, or mopped, the bathroom-like tile of the stage floor maintained its essential sheen of foot-slipping gloss. The crew eventually grew accustomed to sliding across the set in tiny shuffle steps, similar to how you’d navigate a frozen-over driveway.  

6. THERE WAS ONE GRUESOME INJURY.

Despite a space that would never pass OSHA standards, surprisingly few participants were ever actually harmed during taping of Double Dare—with one exception. During one obstacle, a child running across the floor slipped, braced himself, and snapped his arm so severely the bone poked through the skin. Summers would later recall that the kid had lied on his application and may have had a preexisting health condition that made his bones more brittle. Because he wanted to appear on the show so badly, he didn’t mention it.

7. “GAK” WAS A SLANG TERM FOR HEROIN—AND SLIME.

It was inevitable that Double Dare would spawn a series of tie-in products, including board games and apparel. The show also helped licensees create GAK, a rubbery, goopy substance meant to mimic the slime seen on the series. The name came from crew members who worked on the show as a kind of homage to the street term for heroin, a factoid that went over most parents’ heads.

8. THEY USED A THREE-TRIES RULE FOR NEW CHALLENGES.

Double Dare/Facebook

After designing a new obstacle, producers would invite kids from the Philadelphia area on non-shoot days to give it a shot. If a child couldn’t get through it in three tries, the idea would be scrapped.

9. IT USED TONS OF FOOD.

In 1987, The New York Times convinced a show staffer to tabulate the gross amount of food material used during a typical taping of the show. Their tally: 50 gallons of whipped cream, 30 gallons of slime, dozens of eggs, and 100 cubic feet of popcorn. To offset concerns over food waste, the production used as much post-dated canned material or other past-due goods as they could.

10. PEOPLE WENT BONKERS OVER THE SHOW.

While kids were delighted to have a game show that rewarded sloppiness, they weren’t the only ones watching. After just nine months on the air, Double Dare fan clubs popped up at Cornell and Ohio State University; the production received more than 10,000 letters every month, with a portion coming from parents griping that they had to postpone dinner because their kids insisted on viewing the messy show precisely at 5:30 p.m.

11. SUMMERS HAS HOSTED BOOTLEG VERSIONS.

 With Nickelodeon wary of producing a full-blown revival of the series—the Summers-less Double Dare 2000 was not fondly received—the host has taken to emceeing unlicensed versions of the show for locally organized events. Every year, Summers hosts Dunkel Dare, a beer-themed challenge attraction that takes place during Philadelphia’s Beer Week.

12. SUMMERS WAS BELOVED BY SOME MOMS.

Double Dare/Facebook

For years, Summers and Double Dare toured the country, doing live shows for crowds who were eager to try out the obstacles but couldn’t get to Orlando. After the live show, Summers would typically meet with fans to sign autographs. “There were all the mothers who would hand me their telephone numbers during the meet-and-greet after the show and tell me to call them when their husbands weren’t home,” he told People. “There was all sorts of nutty stuff going on.”

13. THEY DIDN’T ENDORSE JUST ANYTHING.

As alien a concept as it may seem today, Nickelodeon didn’t want to slap the Double Dare brand on anything that came along. The show turned down $1 million offered by watchmaker Casio to be the “official” time clock of the series; according to Summers, the network also refused another $1 million to license a Double Dare cereal.

14. THEY DID OFFER A CAR—ONCE.

With a tight budget, the original Double Dare generally kept the threshold for prizes low. In 1987, producers awarded a miniature automobile to a winning team strictly for their own amusement. Said executive producer Geoffrey Darby: “We wanted to be able to hear a kid scream, ‘It’s a new car!’”


October 24, 2016 – 10:00am

Watch an Artist Prepare Tiny Versions of Airline Meals

filed under: art, Food, travel

Meals portioned for a Barbie doll may not be fun to eat, but watching them being made is ridiculously entertaining. Yukiko Hasada is one of many food artists capitalizing on this web trend. Her YouTube channel boasts over 65,000 subscribers, and Singapore Airlines recently featured her work in a new ad. In the video, Hasada’s life-sized hands create scaled-down versions of international dishes like chicken curry, braised pork shoulder, and urchin-glazed cod fish. Thankfully, serving sizes on actual flights are considerably larger.

[h/t Mashable]

All images: Singapore Airlines/YouTube

Know of something you think we should cover? Email us at tips@mentalfloss.com.


October 23, 2016 – 4:00pm

Newborn ducks will take on the characteristics…

Newborn ducks will take on the characteristics of the first animal they see. If the first animal they see is a human, then they will think they’re human and grow up thinking they’re human. This is called “imprinting” and it’s the natural instinct to follow the first thing they see.