5 Rediscovered Species That Made Headlines In 2017

Carlos Vasquez Almazan
Carlos Vasquez Almazan

We all thought they might be goners. Some of 2017’s best feel-good stories involved the sudden, dramatic reappearances of ultra-rare animals. One long-lost salamander crawled past a park ranger. In Australia, a little marsupial made a huge splash. And a husband/wife team identified a moth species which hadn’t been seen since the Gilded Age. Here are five thought-to-be-extinct species that were rediscovered in 2017.

1. ORIENTAL BLUE CLEARWING

Photo of the Oriental Blue Clearwing
Marta Skowron Volponi

Sometimes, the best defense is a great disguise. The oriental blue clearwing is a Malaysian moth that resembles a few of the bees and wasps in its native area. To pass itself off as a stinging insect, the creature’s evolved a bee-like color pattern. It also makes an ominous buzzing noise while flying. The species first came to scientific light in 1887, when a dead specimen was collected and shipped off to the Natural History Museum in Vienna. For 130 years, no other specimens—living or deceased—were reported. As such, scientists had no way of knowing if the oriental blue clearwing had succumbed to extinction. But now, the mystery has been put to rest.    

Marta Skowron Viloponi is a Polish entomologist (“insect expert”) at the University of Gdansk. Between 2013 and 2017, she and her husband, Paolo, photographed a handful of live oriental blue clearwings in southern Malaysia. After a DNA test confirmed that they had, indeed, rediscovered this long-lost species, the Viloponis announced their big find to the world in a paper published on November 24, 2017.

2. VANZOLINI'S BALD-FACED SAKI

A rare, New World monkey, the Vanzolini's bald-faced saki monkey is exceptionally good at playing hide and seek. Scientists first identified the dark-haired species in 1936, then it fell off our collective radar. While some dead specimens turned up in 1956, no confirmed sightings of a live monkey were made until this past February.

Ten months ago, a team set out to find proof of the Vanzolini's bald-faced saki's continued existence. Included in the quest were seven primatologists, multiple guides, some photographers, and even a couple of drone operators. Using a two-story houseboat as their mobile base of operations, the crew traveled through the Amazon basin. Their efforts were rewarded with multiple saki encounters along the Juruá, Tarauacá, and Liberdade Rivers. Unfortunately, the team was also reminded of the manmade challenges facing this species: There’s an abundance of logging sites within the animal’s current range and some local communities harvest monkey meat on a regular basis. As primatologist Laura Marsh, who headed the expedition, put it, “if no further controls on hunting and forest clearing are put into place… the saki’s conservation status may become critical.”

3. CREST-TAILED MULGARA

An illustration of the Crest-tailed Mulgara
Public Domain, Wikimedia Commons

Like many Australian critters, crest-tailed mulgaras have suffered at the hands of invasive animals. The tiny, rodent-like marsupials are now at the mercy of cats, foxes, and other introduced species. Fossil evidence tells us that the mulgaras used to be a common sight Down Under, but those foreign mammals really drove their numbers down. Although a living population is at large in the state of South Australia, it was assumed that the creature must’ve long-since died out in neighboring New South Wales.

Happily, this isn’t the case. On December 15, the University of New South Wales, Sydney sent out a press release confirming that—for the first time in recorded history—a crest-tailed mulgara had been found within state lines. Specifically, a lone female was caught in Sturt National Park by a research team affiliated with the school. After taking some measurements, the scientists set her free.

4. JACKSON’S CLIMBING SALAMANDER

Jackson's climbing salamander
Carlos Vasquez Almazan

During a 1975 expedition into the forests of Guatemala, herpetologists Paul Elias and Jeremy Jackson discovered three then-unknown salamander species. One of these, the Jackson’s climbing salamander, was a vibrant yellow creature whose appearance earned it the nickname “golden wonder.” Yet, eye-catching as it is, the animal has proven quite elusive. In fact, after Jackson and Elias identified the critter in ’75, nobody would see one again for another 42 years. The situation looked especially hopeless in 2014, when Jackson and Elias themselves went on a follow-up trip through the same area. Though they carefully retraced the steps they’d taken decades earlier, not a single “golden wonder” was spotted this time.

Then along came a park ranger on a lunch break. In 2015, an international group known as Global Wildlife Conservation (GWC) helped establish the Finca San Isidro Amphibian Reserve in western Guatemala. Earlier this year, one of the rangers there—27-year old Ramos León-Tomás—was taking a break when he noticed an attractive yellow salamander. He photographed it and sent the pictures off to herpetologist Carlos Vasquez for identification. Sure enough, it was a Jackson’s climbing salamander. According to CBS Miami, León-Tomás “hopes the historic find will bring added recognition and pay for the guards at the reserve.”

5. TÁCHIRA ANTPITTA

Táchira Antpitta
Jhonathan Miranda

For the record, that’s pronounced “TAH-chee-rah ant-pit-ah.” It’s a little brown songbird named after a state in Venezuela. In 1955 and 1956, ornithologists discovered this species near the country’s Colombian border, and that’s the last anyone saw of it for a long while. Because no other sightings or encounters were announced over the following six decades, the International Union for Conservation of Nature (IUCN) labeled the Táchira antpitta “critically endangered.”

This year, though, we learned about a 2016 expedition that verified that the species hasn’t perished. The trip in question was orchestrated by an international conservation partnership called the Red Siskin Initiative. Led by biologist Jhonathan Miranda, the team set out to find living specimens of near-extinct birds in western Venezuela. On the first full day of their trip, the team hit the jackpot when they became the first people to identify a Táchira antpitta’s distinctive cry since 1956. Later on, the explorers managed to photograph one of the birds. Altogether, they spotted two individuals and heard a total of four.

BONUS: THE NEW GUINEA HIGHLAND WILD DOG

A lot of controversy surrounds this animal. Scientists can’t reach a consensus on how the New Guinea highland wild dog should be classified. Some say it’s a valid canine species, others regard it as merely a dingo subspecies, and still others write off the creature as a primitive domestic dog breed.

In any event, the pooch is world famous for its weird, high-pitched howl. The first western scientist to learn of its existence was English zoologist Charles Walter Di Vis, who came across one on Mount Scratchley in Papua New Guinea back in 1897. A handful of these dogs were exported in the 1950s and today, captive-bred specimens can be found in zoos from Neumünster, Germany to Kansas City, Missouri.

But what happened to their wild counterparts? One free-roaming individual was photographed on New Guinea’s Star Mountains in 1989. However, no other verified encounters with these dogs in their natural habitat were made until September 2016, when researchers used camera traps to snag 140 photographs of a wild group of at least 15 canines. The participating adventurers also documented paw prints and gathered fecal material. News of their findings was broken in a March 24, 2017 press release from the New Guinea Highland Wild Dog Foundation, a nonprofit activist group.

10 Products for a Better Night's Sleep

Amazon/Comfort Spaces
Amazon/Comfort Spaces

Getting a full eight hours of sleep can be tough these days. If you’re having trouble catching enough Zzzs, consider giving these highly rated and recommended products a try.

1. Everlasting Comfort Pure Memory Foam Knee Pillow; $25

Everlasting Comfort Knee Pillow
Everlasting Comfort/Amazon

For side sleepers, keeping the spine, hips, and legs aligned is key to a good night’s rest—and a pain-free morning after. Everlasting Comfort’s memory foam knee pillow is ergonomically designed to fit between the knees or thighs to ensure proper alignment. One simple but game-changing feature is the removable strap, which you can fasten around one leg; this keeps the pillow in place even as you roll at night, meaning you don’t have to wake up to adjust it (or pick it up from your floor). Reviewers call the pillow “life-changing” and “the best knee pillow I’ve found.” Plus, it comes with two pairs of ear plugs.

Buy it: Amazon

2. Letsfit White Noise Machine; $21

Letsfit White Noise Machine
Letsfit/Amazon

White noise machines: They’re not just for babies! This Letsfit model—which is rated 4.7 out of five with nearly 3500 reviews—has 14 potential sleep soundtracks, including three white noise tracks, to better block out everything from sirens to birds that chirp enthusiastically at dawn (although there’s also a birds track, if that’s your thing). It also has a timer function and a night light.

Buy it: Amazon

3. ECLIPSE Blackout Curtains; $16

Eclipse Black Out Curtains
Eclipse/Amazon

According to the National Sleep Foundation, too much light in a room when you’re trying to snooze is a recipe for sleep disaster. These understated polyester curtains from ECLIPSE block 99 percent of light and reduce noise—plus, they’ll help you save on energy costs. "Our neighbor leaves their backyard light on all night with what I can only guess is the same kind of bulb they use on a train headlight. It shines across their yard, through ours, straight at our bedroom window," one Amazon reviewer who purchased the curtains in black wrote. "These drapes block the light completely."

Buy it: Amazon

4. JALL Wake Up Light Sunrise Alarm Clock; $38

JALL Wake Up Light Sunrise Alarm Clock
JALL/Amazon

Being jarred awake by a blaring alarm clock can set the wrong mood for the rest of your day. Wake up in a more pleasant way with this clock, which gradually lights up between 10 percent and 100 percent in the 30 minutes before your alarm. You can choose between seven different colors and several natural sounds as well as a regular alarm beep, but why would you ever use that? “Since getting this clock my sleep has been much better,” one reviewer reported. “I wake up not feeling tired but refreshed.”

Buy it: Amazon

5. Philips SmartSleep Wake-Up Light; $200

Philips SmartSleep Wake-Up Light
Philips/Amazon

If you’re looking for an alarm clock with even more features, Philips’s SmartSleep Wake-Up Light is smartphone-enabled and equipped with an AmbiTrack sensor, which tracks things like bedroom temperature, humidity, and light levels, then gives recommendations for how you can get a better night’s rest.

Buy it: Amazon

6. Slumber Cloud Stratus Sheet Set; $159

Stratus sheets from Slumber Cloud.
Slumber Cloud

Being too hot or too cold can kill a good night’s sleep. The Good Housekeeping Institute rated these sheets—which are made with Outlast fibers engineered by NASA—as 2020’s best temperature-regulating sheets.

Buy it: SlumberCloud

7. Comfort Space Coolmax Sheet Set; $29-$40

Comfort Spaces Coolmax Sheets
Comfort Spaces/Amazon

If $159 sheets are out of your price range, the GHI recommends these sheets from Comfort Spaces, which are made with moisture-wicking Coolmax microfiber. Depending on the size you need, they range in price from $29 to $40.

Buy it: Amazon

8. Coop Home Goods Eden Memory Foam Pillow; $80

Coop Eden Pillow
Coop Home Goods/Amazon

This pillow—which has a 4.5-star rating on Amazon—is filled with memory foam scraps and microfiber, and comes with an extra half-pound of fill so you can add, or subtract, the amount in the pillow for ultimate comfort. As a bonus, the pillows are hypoallergenic, mite-resistant, and washable.

Buy it: Amazon

9. Baloo Weighted Blanket; $149-$169

Baloo Weighted Blanket
Baloo/Amazon

Though the science is still out on weighted blankets, some people swear by them. Wirecutter named this Baloo blanket the best, not in small part because, unlike many weighted blankets, it’s machine-washable and -dryable. It’s currently available in 12-pound ($149) twin size and 20-pound ($169) queen size. It’s rated 4.7 out of five stars on Amazon, with one reviewer reporting that “when it's spread out over you it just feels like a comfy, snuggly hug for your whole body … I've found it super relaxing for falling asleep the last few nights, and it looks nice on the end of the bed, too.” 

Buy it: Amazon 

10. Philips Smartsleep Snoring Relief Band; $200

Philips SmartSleep Snoring Relief Band
Philips/Amazon

Few things can disturb your slumber—and that of the ones you love—like loudly sawing logs. Philips’s Smartsleep Snoring Relief Band is designed for people who snore when they’re sleeping on their backs, and according to the company, 86 percent of people who used the band reported reduced snoring after a month. The device wraps around the torso and is equipped with a sensor that delivers vibrations if it detects you moving to sleep on your back; those vibrations stop when you roll onto your side. The next day, you can see how many hours you spent in bed, how many of those hours you spent on your back, and your response rate to the vibrations. The sensor has an algorithm that notes your response rate and tweaks the intensity of vibrations based on that. “This device works exactly as advertised,” one Amazon reviewer wrote. “I’d say it’s perfect.”

Buy it: Amazon

This article contains affiliate links to products selected by our editors. Mental Floss may receive a commission for purchases made through these links.

10 Facts About Argentine Ants

A pile of genetically-related Argentine ants
A pile of genetically-related Argentine ants
Marc Matteo, Flickr // CC BY-NC 2.0

A supercolony of invasive Argentine ants (Linepithema humile) stretches for 560 miles beneath California, from San Diego to San Francisco. The billions of Argentine ants are unlike other ants in many ways—and they are virtually indestructible. Along with their supercolonies in Europe, Japan, and Australia, L. humile’s global domination is rivaled only by that of human beings. Here’s what you should know about these prolific pests.

1. Argentine ant colonies are ruled by hundreds of queens.

Most ant colonies revolve around a single queen. Growing much larger than the worker drones, she is programmed to mate as quickly as possible, then to leave her nest of origin and establish a new one. In some species, a single queen can lay millions of eggs in a lifetime, producing an army of worker drones and future queens who will go off to build their own nests. But unlike most ants, Argentines are polygynous: Each nest contains multiple queens. In some, they can form up to 30 percent of the population.

2. Argentine ants move their nests frequently.

Nest types vary from ant species to ant species, but those who live in soil commonly dig tunnels and chambers deep into the earth that will protect the colony throughout the life of the queen. L. humile, though, is transient and ever shifting. Argentine ants frequently pack up their eggs and move the entire colony, queen and all, to a new nest, even when there is no apparent threat. Biologist Deborah Gordon told Ars Technica that the ants typically have 20 to 30 shallow nests at any one time, which can be built up in a matter of just weeks.

3. Argentine ants traveled the U.S. before settling down in California.

Argentine ants arrived in the United States from Northern Argentina in the late 19th century, when the first recorded Argentine ant was found in Louisiana in 1891. Researchers believe that the ants hitched a ride to North America in Argentinian shipments of coffee or sugar off-loaded at the Port of New Orleans. From there, they traveled—most likely by train—across the South and into California. Enticed by the Mediterranean climate, one similar to that of its original home in South America, the ants set up shop. By 1907, they’d displaced local native ants and begun their first steps towards total soil domination along 560 miles of California coastline.

4. California’s Argentine ants are more laid-back than their South American cousins.

In side-by-side comparisons of Argentine ants from their South American homeland and California, researchers have found that those from the West Coast are far more mellow than those from Argentina. In studies, it was typical for two ants from different nests to fight when placed in the same vial in Argentina, but in California, ants from different nests rarely fought, even when they were collected from locations several hundred miles apart.

A DNA study of ants from both locations in 2000 revealed a stark difference. In the ants from Argentina, microsatellites—short, uniquely patterned DNA sequences passed down from generation to generation—had more than twice as much variation as the microsatellites of the Californian ants. When two individuals from different nests in California were placed together, they recognized one another as family. The ants from Argentina didn’t, making them more likely to display territorial aggression.

The difference is rooted in the genetic bottleneck the ants encountered on their arrival to the Golden State over a century ago. According to biologist Neil D. Tsutsui, who conducted the DNA study, the ants in California today are all descendants of that founding colony. “It would be as if all of the people in the United States were descended from the Pilgrims who came here in 1620,” he told the Stanford Report in 2004. Instead of competing with one another, generation after generation has worked together to take out native ants and build an immense California colony.

5. Argentine ants protect other insects in exchange for sweet, sweet honeydew.

Argentine ants
Two Argentine ants share a tiny blob of honeydew.
Davefoc, Wikimedia Commons // CC BY-SA 4.0

Argentine ants love to feed on sweet nectar, but flowers and suburban kitchens aren’t the only source of such desirable foodstuffs. Insects that feed on plant sap, like mealybugs, scales, and aphids, naturally excrete sugar-rich liquid “honeydew” from their butts. To secure a steady flow of the sticky-sweet substance, Argentine ants will fight off the predators of their insect chefs, including soldier beetles and midges. They’ll even relocate their honeydew producers to better food sources or microclimates to get the most they can out of their anal secretions.

6. The California Argetine ant supercolony is one-sixth the size of Southern Europe’s.

The California supercolony, which scientists have named the “Californian large,” is only the second-biggest conglomeration of Argentine ants in the world. The biggest colony is found along Southern Europe’s Mediterranean coast, where it stretches 3700 miles from northern Italy to the Atlantic coast of Spain. The ants, introduced around 80 years ago, now number in the billions. Smaller supercolonies also exist in Japan and Australia.

7. Argentine ants are second only to humans in their scale of world domination.

In 2009, researchers discovered that Argentine ants from three of the world’s largest supercolonies (Southern Europe, California, and Japan) are so closely related that they actually form a single mega-colony. The study, led by Eriki Sunamura from the University of Tokyo, found that when placed together, ants from the three supercolonies refused to fight. Instead, they rubbed antennae in greeting the way L. humile does when interacting with genetically-related individuals.

The researchers believe that the Argentine ant mega-colony isn’t just the largest insect colony ever identified; it rivals that of human colonization around the globe. Presenting their findings in the journal Insect Sociaux, they wrote, “the enormous extent of this population is paralleled only by human society.”

8. A mass execution of Argentine ant queens takes place every spring.

Each spring, just before mating season begins, worker ants go on a killing rampage and assassinate 90 percent of their queens. Entomologists aren’t sure exactly why the large-scale execution occurs, but one hypothesis, published in the Journal of Evolutionary Biology in 2001, suggests that it is a “spiteful behavior” to kill the queens that are less related, on average, to the workers.

In their study, researchers from the University of Lausanne hypothesized that Argentine ants are regularly separated from direct family members through free exchange among the nests. Before mating season begins each year, those that are genetically related band together to kill more distantly related queens. Doing so decreases the nest’s genetic diversity and allows it to be rebuilt with a queen who is directly related to the greatest majority of workers.

The study’s results were inconclusive and the question remained unanswered, yet researchers learned something unexpected in the process. Instead of finding genetic diversity among worker ants, those belonging to each nest were actually a homogenous population. Only the queens were genetic outliers with relatively few familial relationships in each nest.

9. Climate change is making Argentine ants more of a nuisance to humans.

Argentine ants thrive in a Mediterranean climate where winters are cool and wet and summers are warm and dry. When conditions are ideal, they largely keep to themselves, but when conditions are drought-like or extremely wet, the ants move indoors in search of more hospitable climes. Experts at survival, Argentine ants can find food or water that’s been left unguarded in just minutes.

With the climate crisis, conditions in California are becoming more extreme. Hot days, no longer relegated just to the summer months, are becoming more numerous and prolonged. Droughts are becoming more frequent. While these changes are unlikely to harm much of the California supercolony, they are likely to drive the residents of urban nests more frequently into people's homes, making the ants a major nuisance for residents from San Diego to San Francisco.

10. Argentine ants are almost impossible to eradicate.

Individual Argentine ants are easy enough to kill, but an Argentine ant colony is a different story. The California colony has no natural predators and, thanks to their high levels of cooperation and massive numbers, L. humile has effectively destroyed possible competitors and disrupted the ecological balance of native species in the process. Insecticides, which are unable to penetrate into the underground nests, aren’t particularly effective. And because the ants can pick up and move their entire nest so quickly, neither are household control measures such as ant bait. After just over a century in California, Argentine ants are now virtually invincible.