Mythical Yetis are Actually Bears, According to DNA Analysis

Walkabout Films via Flickr // CC BY-ND 2.0
Walkabout Films via Flickr // CC BY-ND 2.0

In 1959, the U.S. government advised hunters that they were permitted to kill a Yeti only in self-defense. The decree was prompted by findings from earlier expeditions—huge footprints, hides, and bones from a large, unidentified creature native to the Himalayas—which explorers thought could be from the mythical hominid that local Sherpas called the Yeti, or "wild man."

But now, researchers at the State University of New York in Buffalo and their colleagues have concluded that folklore about abominable snowmen in the Himalayas was just that. After testing evidence collected from the Tibetan Plateau and from museum collections, they found the biological root of the Yeti legends to be local bears.

In the new study, published in the Proceedings of the Royal Society B, researchers analyzed 24 hair, bone, tooth, skin, and scat samples. Nine of the samples were purported to be from Yetis, while the rest were gathered recently from the Tibetan brown bear, Himalayan brown bear, and Himalayan black bear. The team assembled complete mitochondrial genomes for the Himalayan brown bear and black bear for the first time, then analyzed and compared all of the samples. Of the nine allegedly from Yetis, eight were actually from Asian bears. One was from a dog.

While these particular findings suggest that the Yeti stories probably emerged from humans' encounters with bears, the study provides valuable genetic data that could shed light on how the bears evolved. The mitochondrial genomes—which are based on the genetic information passed down only through females—could reveal when the rare subspecies and more common bear species last shared a maternal ancestor, and how genetically dissimilar they are today, Science notes.

The genomic analysis showed that Tibetan brown bears share a close ancestry with North American and Eurasian brown bears. But the Himalayan brown bears branched off from their common ancestral tree about 650,000 years ago, when glaciers expanded over the Tibetan Plateau—which may have separated those bears from the larger gene pool. Understanding how the subspecies evolved could illuminate the environmental history of the region, said Charlotte Lindqvist, an associate professor of biological sciences at SUNY Buffalo and the study's lead scientist, in a statement. The genetic data may assist conservation of these vulnerable and endangered animals.

Lindqvist said that their technique could also be a useful tool for exploring the roots of folklore about large cryptids—as well as real beasts.

"Our findings strongly suggest that the biological underpinnings of the Yeti legend can be found in local bears," she said. "Our study demonstrates that genetics should be able to unravel other, similar mysteries."

10 Rad Gifts for Hikers

Greg Rosenke/Unsplash
Greg Rosenke/Unsplash

The popularity of bird-watching, camping, and hiking has skyrocketed this year. Whether your gift recipients are weekend warriors or seasoned dirtbags, they'll appreciate these tools and gear for getting most out of their hiking experience.

1. Stanley Nesting Two-Cup Cookset; $14

Amazon

Stanley’s compact and lightweight cookset includes a 20-ounce stainless steel pot with a locking handle, a vented lid, and two insulated 10-ounce tumblers. It’s the perfect size for brewing hot coffee, rehydrating soup, or boiling water while out on the trail with a buddy. And as some hardcore backpackers note in their Amazon reviews, your favorite hiker can take the tumblers out and stuff the pot with a camp stove, matches, and other necessities to make good use of space in their pack.

Buy it: Amazon

2. Osprey Sirrus and Stratos 24-Liter Hiking Packs; $140

Amazon

Osprey’s packs are designed with trail-tested details to maximize comfort and ease of use. The Sirrus pack (pictured) is sized for women, while the Stratos fits men’s proportions. Both include an internal sleeve for a hydration reservoir, exterior mesh and hipbelt pockets, an attachment for carrying trekking poles, and a built-in rain cover.

Buy them: Amazon, Amazon

3. Yeti Rambler 18-Ounce Bottle; $48

Amazon

Nothing beats ice-cold water after a summer hike or a sip of hot tea during a winter walk. The Yeti Rambler can serve up both: Beverages can stay hot or cold for hours thanks to its insulated construction, and its steel body (in a variety of colors) is basically indestructible. It will add weight to your hiker's pack, though—for a lighter-weight, non-insulated option, the tried-and-true Camelbak Chute water bottle is incredibly sturdy and leakproof.

Buy it: Amazon

4. Mappinners Greatest 100 Hikes of the National Parks Scratch-Off Poster; $30

Amazon

The perfect gift for park baggers in your life (or yourself), this 16-inch-by-20-inch poster features epic hikes like Angel’s Landing in Zion National Park and Half Dome in Yosemite National Park. Once the hike is complete, you can scratch off the gold foil to reveal an illustration of the park.

Buy it: Amazon

5. National Geographic Adventure Edition Road Atlas; $19

Amazon

Hikers can use this brand-new, updated road atlas to plan their next adventure. In addition to comprehensive maps of all 50 states, Puerto Rico, Canada, and Mexico, they'll get National Geographic’s top 100 outdoor destinations, useful details about the most popular national parks, and points on the maps noting off-the-beaten-path places to explore.  

Buy it: Amazon

6. Adventure Medical Kits Hiker First-Aid Kit; $25

Amazon

This handy 67-piece kit is stuffed with all the things you hope your hiker will never need in the wilderness. Not only does it contain supplies for pain, cuts and scrapes, burns, and blisters (every hiker’s nemesis!), the items are organized clearly in the bag to make it easy to find tweezers or an alcohol wipe in an emergency.

Buy it: Amazon

7. Hiker Hunger Ultralight Trekking Poles; $70

Amazon

Trekking poles will help increase your hiker's balance and stability and reduce strain on their lower body by distributing it to their arms and shoulders. This pair is made of carbon fiber, a super-strong and lightweight material. From the sweat-absorbing cork handles to the selection of pole tips for different terrain, these poles answer every need on the trail. 

Buy it: Amazon

8. Leatherman Signal Camping Multitool; $120

Amazon

What can’t this multitool do? This gadget contains 19 hiking-friendly tools in a 4.5-inch package, including pliers, screwdrivers, bottle opener, saw, knife, hammer, wire cutter, and even an emergency whistle.

Buy it: Amazon

9. RAVPower Power Bank; $24

Amazon

Don’t let your hiker get caught off the grid with a dead phone. They can charge RAVPower’s compact power bank before they head out on the trail, and then use it to quickly juice up a phone or tablet when the batteries get low. Its 3-inch-by-5-inch profile won’t take up much room in a pack or purse.

Buy it: Amazon

10. Pack of Four Indestructible Field Books; $14

Amazon

Neither rain, nor snow, nor hail will be a match for these waterproof, tearproof 3.5-inch-by-5.5-inch notebooks. Your hiker can stick one in their pocket along with a regular pen or pencil to record details of their hike or brainstorm their next viral Tweet.

Buy it: Amazon

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8-Year-Old Twinkies Intrigue Fungus Experts

Photog Bill, Flickr // CC BY-NC-ND 2.0
Photog Bill, Flickr // CC BY-NC-ND 2.0

An 8-year-old box of Twinkies has disproved the myth that the Hostess product never goes bad. Upon closer inspection, it also revealed that the snack may decompose differently than your average foodstuff. As NPR reports, the varying mold growth on the Twinkies was so unusual, it caught the attention of fungi scientists.

The story of the putrefied pastries began in 2012, when nature photographer Colin Purrington learned of Hostess Brands' impending bankruptcy. Fearing Twinkies would disappear from shelves for good, he bought a box for posterity. It sat in his basement until he was hit with a junk food craving earlier this year.

When Purrington ripped open the 8-year-old package, he was surprised to find that the snacks inside were inedible. He had assumed Twinkies were indestructible, but the contents of the box proved otherwise: The cake he had bitten into tasted like what he described as "old sock," another one had a dark spot on it, and a third had shriveled up and turned gray.

After Purrington shared photos of his discovery online, he sent the Twinkies to Brian Lovett and Matt Kasson, scientists at West Virginia University in Morgantown who specialize in fungi. In the past, the researchers have studied how well fungi grow on preservative-laden food, like Peeps. They suspected that fungal growth was responsible for the Twinkies' decay—they just didn't know what kind.

The shriveled-up Twinkie appeared to be shrink-wrapped in its wrapper, a result of the fungus inside consuming more gases than it produced. The fungus may have stopped growing once it ran out of air in the package. When they unwrapped it, the scientists encountered a rock-solid material they needed a bone marrow biopsy tool to penetrate. The Twinkie wasn't hard all the way through, however: The soft, creamy center survived, suggesting the fungi was more attracted to the cake than the filling.

Samples of the Twinkie marked with the dark circle pointed to the presence of Cladosporium, one of the most common airborne molds found indoors. The researchers haven't been able to obtain a living spore sample from the hardened pastry, but they're still trying. Further lab dish tests will hopefully reveal the species of fungi that mummified one of the world's most shelf-stable baked goods.

[h/t NPR]