Do Big Cats Love Catnip, Too?

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iStock

You bet they do!

In the 1970s, zoologists from the University of Tennessee and the Knoxville Zoological Park gave catnip and smooth rocks sprayed with catnip extract to 33 of the park's big cats to see what they’d do. The responses were mostly positive.

The park’s lions and jaguars reacted most strongly to the catnip, even at very low doses. Both the males and females of these species responded the same way, but reproductive-age animals were more sensitive than either cubs, immature adults, or very old animals. 

Tigers, cougars, and bobcats, meanwhile, reacted less strongly, and the park's two cheetahs never even approached the catnip or control objects. The researchers noted that the animals that responded to the catnip aren’t ones that would normally encounter it in the wild, since the catnip plant is native to North America and Europe. Except for the cheetahs, the cats that didn’t respond as much would encounter catnip in their natural habitat, and the researchers thought that the difference in the species’ reactions might be because of the plant's novelty, or lack thereof. 

The animals that did respond to the catnip reacted in much the same way that domestic cats do—sniffing and licking the catnip or sprayed rocks, rubbing their chins and cheeks on it or rolling over and rubbing their body on it. The big difference the researchers found in responses was that, while domestic cats will usually respond to catnip for up to 15 minutes and then take an hour or so of “reset time” before responding again, the big cats’ response can last an hour or more and they show the same response if they lose interest and then return to the catnip just a few minutes later. 

Check out some of these big cats playing with catnip below.

Why Are There 10 Hot Dogs to a Pack But Only 8 Buns?

tacar/iStock via Getty Images
tacar/iStock via Getty Images

Watching competitive eating champion Joey Chestnut cram dozens of hot dogs down his throat would make anyone crave a grilled log of processed meat this summer. But shopping for hot dogs can be a confusing experience. The dogs are typically sold in packs of 10, but the buns are sold in packs of eight. What's behind this strange dog and bun inequality?

According to the National Hot Dog and Sausage Council—yes, there is a National Hot Dog and Sausage Council—there’s a good reason for the discrepancy. For starters, distributors of hot dogs are almost always different from manufacturers of baked goods like rolls. The hot dogs are sold in packs of 10 because producers of meat (or meat-like) products selected that quantity when hot dogs started to sell at retail grocery stores in the 1940s. Oscar Mayer, which led the charge into direct-to-consumer hot dog packaging, sold hot dogs by the pound in accordance with how meat is typically priced. Having 10 dogs that weighed 1.6 ounces each seemed like the ideal distribution of weight.

Bakeries, meanwhile, have standards of their own. Buns and sandwich rolls are usually sold eight to a pack because the baking trays for the elongated buns are typically sized to fit that number. Two sets of four buns come off the tray, which is the reason why buns are often still attached to one another when you open a bag.

These standards were created independently of one another: Bakeries weren’t too preoccupied with hot dogs when they were settling on a four-roll tray standard, and hot dog manufacturers weren’t thinking about how difficult it would be for bakeries to break from their conveyor system to offer 10 buns to a pack.

It can be frustrating if you buy just one or two packages of each, but if you’re hosting a big enough party, the uneven number doesn’t matter. You just need to buy five packages of buns and four packages of hot dogs to have 40 matching pairs. No complicated calculations required.

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When Are the Dog Days of Summer?

Dorottya_Mathe/iStock via Getty Images
Dorottya_Mathe/iStock via Getty Images

The official “dog days” of summer begin on July 3 and end on August 11. So how did this time frame earn its canine nickname? It turns out the phrase has nothing to do with the poor pooches who are forever seeking shade in the July heat, and everything to do with the nighttime sky.

Sirius, the Dog Star, is the brightest star in the sky. The ancient Greeks noticed that in the summer months, Sirius rose and set with the Sun, and they theorized that it was the bright, glowing Dog Star that was adding extra heat to the Earth in July and August.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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