logo
Elusive woolly rat photographed for the first time

Elusive woolly rat photographed for the first time

Yahoo21-05-2025

New Guinea's subalpine woolly rat is the rodent of legends. Mallomys istapantap was first described in 1989, but even then the descriptions were only gleaned from examining historical museum material. The last recorded sighting of the fuzzy rodent 30 years ago failed to yield any photographic evidence, but after six months scouring the jungles of New Guinea, one researcher has finally documented one of the world's most elusive mammals.
The New Guinean woolly rat doesn't make itself easy to find, but Czech Academy of Sciences doctoral candidate František Vejmělka recently managed to make history with the help of local guides.
'If it weren't for the indigenous hunters who accompanied me in the mountains and helped me locate the animals, I would never have been able to collect this data,' Vejmělka said in a statement.
Vejmělka collaborated with multiple local tribes to survey the region around Papua New Guinea's highest peak, Mount Wilhelm (14,793 ft). Along the way he documented and genetically identified 61 species of non-flying rodents and marsupials, but it was his firsthand encounters with the woolly rat that stood out from the rest.
The murine rodent lives in the region's remote, steep highlands at elevations around 12,000 feet. They only emerge at night to feed on plant matter and spend their days in underground burrows or high in the tree canopies. Vejmělka's documentation published last month in the journal Mammalia notes the thick-furred woolly rats measure about 2.78-feet long including their tail, weigh around 4.4 lbs, and feature 3-inch paws. Despite their moderate size, the university announcement describes the animal as a 'striking and formidable creature.'
While tropical biodiversity across Africa, the Americas, and Southeast Asia is well-studied, the Australasian regions remain largely unstudied. Collaborating with local indigenous communities to find and document animals such as the woolly rat is crucial to help strengthen biodiversity and conservation efforts, and what is needed to protect them from outside threats.
'It's astonishing that such a large and striking animal has remained so poorly studied,' said Vejmělka. 'How much more is there to discover about the biodiversity of tropical mountains?'

Orange background

Try Our AI Features

Explore what Daily8 AI can do for you:

Comments

No comments yet...

Related Articles

Your Smartphone Is a Parasite, According to Evolution
Your Smartphone Is a Parasite, According to Evolution

Gizmodo

time05-06-2025

  • Gizmodo

Your Smartphone Is a Parasite, According to Evolution

Head lice, fleas and tapeworms have been humanity's companions throughout our evolutionary history. Yet, the greatest parasite of the modern age is no blood-sucking invertebrate. It is sleek, glass-fronted, and addictive by design. Its host? Every human on Earth with a wifi signal. Far from being benign tools, smartphones parasitise our time, our attention and our personal information, all in the interests of technology companies and their advertisers. In a new article in the Australasian Journal of Philosophy, we argue smartphones pose unique societal risks, which come into sharp focus when viewed through the lens of parasitism. What, exactly, is a parasite? Evolutionary biologists define a parasite as a species that benefits from a close relationship with another species – its host – while the host bears a cost. The head louse, for example, is entirely dependent on our own species for its survival. They only eat human blood, and if they become dislodged from their host, they survive only briefly unless they are fortunate enough to fall onto another human scalp. In return for our blood, head lice give us nothing but a nasty itch; that's the cost. Smartphones have radically changed our lives. From navigating cities to managing chronic health diseases such as diabetes, these pocket-sized bits of tech make our lives easier. So much so that most of us are rarely without them. Yet, despite their benefits, many of us are hostage to our phones and slaves to the endless scroll, unable to fully disconnect. Phone users are paying the price with a lack of sleep, weaker offline relationships and mood disorders. From mutualism to parasitism Not all close species relationships are parasitic. Many organisms that live on or inside us are beneficial. Consider the bacteria in the digestive tracts of animals. They can only survive and reproduce in the gut of their host species, feeding on nutrients passing through. But they provide benefits to the host, including improved immunity and better digestion. These win-win associations are called mutualisms. The human-smartphone association began as a mutualism. The technology proved useful to humans for staying in touch, navigating via maps, and finding useful information. Philosophers have spoken of this not in terms of mutualism, but rather as phones being an extension of the human mind, like notebooks, maps, and other tools. From these benign origins, however, we argue that the relationship has become parasitic. Such a change is not uncommon in nature; a mutualist can evolve to become a parasite, or vice versa. Smartphones as parasites As smartphones have become nearly indispensable, some of the most popular apps they offer have come to serve the interests of the app-making companies and their advertisers more faithfully than those of their human users. These apps are designed to nudge our behaviour to keep us scrolling, clicking on advertising and simmering in perpetual outrage. The data on our scrolling behaviour is used to further that exploitation. Your phone only cares about your personal fitness goals or desire to spend more quality time with your kids to the extent that it uses this information to tailor itself to better capture your attention. So, it can be useful to think of users and their phones as akin to hosts and their parasites – at least some of the time. While this realisation is interesting in and of itself, the benefit of viewing smartphones through the evolutionary lens of parasitism comes into its own when considering where the relationship might head next – and how we could thwart these high-tech parasites. Where policing comes in On the Great Barrier Reef, bluestreak cleaner wrasse establish 'cleaning stations' where larger fish allow the wrasse to feed on dead skin, loose scales, and invertebrate parasites living in their gills. This relationship is a classic mutualism – the larger fish lose costly parasites and the cleaner wrasse get fed. Sometimes the cleaner wrasse 'cheat' and nip their hosts, tipping the scale from mutualism to parasitism. The fish being cleaned may punish offenders by chasing them away or withholding further visits. In this, the reef fish exhibit something evolutionary biologists see as important to keeping mutualisms in balance: policing. Could we adequately police our exploitation by smartphones and restore a net-beneficial relationship? Evolution shows that two things are key: an ability to detect exploitation when it occurs, and the capacity to respond (typically by withdrawing service to the parasite). A difficult battle In the case of the smartphone, we can't easily detect the exploitation. Tech companies that design the various features and algorithms to keep you picking up your phone aren't advertising this behaviour. But even if you're aware of the exploitative nature of smartphone apps, responding is also more difficult than simply putting the phone down. Many of us have become reliant on smartphones for everyday tasks. Rather than remembering facts, we offload the task to digital devices – for some people, this can change their cognition and memory. We depend on having a camera for capturing life events or even just recording where we parked the car. This both enhances and limits our memory of events. Governments and companies have only further cemented our dependence on our phones, by moving their service delivery online via mobile apps. Once we pick up the phone to access our bank accounts or access government services, we've lost the battle. How then can users redress the imbalanced relationship with their phones, turning the parasitic relationship back to a mutualistic one? Our analysis suggests individual choice can't reliably get users there. We are individually outgunned by the massive information advantage tech companies hold in the host-parasite arms race. The Australian government's under-age social media ban is an example of the kind of collective action required to limit what these parasites can legally do. To win the battle, we will also need restrictions on app features known to be addictive, and on the collection and sale of our personal data. Rachael L. Brown, Director of the Centre for Philosophy of the Sciences and Associate Professor of Philosophy, Australian National University, and Rob Brooks, Scientia Professor of Evolution, UNSW Sydney This article is republished from The Conversation under a Creative Commons license. Read the original article.

Experts celebrate as trail camera captures rare footage of elusive species not seen in decades: 'Such a large and striking animal'
Experts celebrate as trail camera captures rare footage of elusive species not seen in decades: 'Such a large and striking animal'

Yahoo

time03-06-2025

  • Yahoo

Experts celebrate as trail camera captures rare footage of elusive species not seen in decades: 'Such a large and striking animal'

A researcher has made history after securing the first-ever scientific observation of an animal that had eluded scientists for decades. During a six-month expedition on the island of Papua New Guinea, František Vejmělka, a doctoral candidate from the Biology Centre of the Czech Academy of Sciences and the University of South Bohemia, spotted the Mallomys istapantap, also known as the subalpine woolly rat. As IFL Science noted, Vejmělka documented the sighting in a study published in the journal Mammalia According to New Atlas, the woolly rat is one of the largest murine rodents in the world, and the study said it is the largest rodent of the Australian and Oceanian zoogeographic regions. Murine rodents are a large group of "Old World" rats and mice that comprises over 500 species, per Animal Diversity Web. As one of the largest murine rodents, the woolly rat had never been scientifically discovered in the wild since the species was first described in 1989 using a historic specimen from a museum. Vejmělka utilized camera traps and help from indigenous hunters to obtain the rare footage of the woolly rat. "The combination of modern and traditional detection methods enriched by the immense traditional hunting knowledge of Indigenous communities resulted in the first specimen records of this remarkable rodent in over 30 years and the first scientific observations of living animals," the study read, per IFL Science. In a statement, Vejmělka acknowledged the significance of the discovery and the importance of research ventures. "It's astonishing that such a large and striking animal has remained so poorly studied," Vejmělka said. "How much more is there to discover about the biodiversity of tropical mountains?" Thanks to trail cameras, many research expeditions can obtain vital information that not only captures rare sightings but also helps gauge the health and function of secluded ecosystems and habitats. This can go a long way in studying delicate food chains without interfering or interacting with nearby wildlife. Do you think more places of worship should embrace clean energy? Yes — it sets a positive example Only if it saves money No opinion Absolutely not Click your choice to see results and speak your mind. Conservation efforts can significantly impact our well-being by preserving natural resources and promoting healthy ecosystems. Conservationism can also directly benefit human health by ensuring healthy food chains. Join our free newsletter for good news and useful tips, and don't miss this cool list of easy ways to help yourself while helping the planet.

A Mysterious Rat Vanished Into the Mountains in 1989. It Just Showed Its Face for the First Time Since.
A Mysterious Rat Vanished Into the Mountains in 1989. It Just Showed Its Face for the First Time Since.

Yahoo

time27-05-2025

  • Yahoo

A Mysterious Rat Vanished Into the Mountains in 1989. It Just Showed Its Face for the First Time Since.

Here's what you'll learn about when you read this story. Mallomys istapantap is the largest (and also least studied) species of woolly rat in New Guinea, and it has finally been documented in photos and on video. This species was first documented in 1989, but in their attempts to further study the creature, researchers had little to go off of other than a handful of museum specimens. The knowledge preserved by local Indigenous people suggests that only sightings of the M. istapantap by scientists—and not the species itself—are rare. Not all rats are sewer or subway denizens skittering away with someone's slice of pizza (and then going viral for it). In the remote mountain rainforests of Papua New Guinea, there is a creature that has managed to elude humans for decades—a giant rat that hides in the leafy shadows and has never known a discarded pizza crust. Meet Mallomys istapantap, the Subalpine Woolly Rat of New Guinea. This behemoth of a rodent can easily grow to be the size of a house cat and reach lengths of 85 centimeters (or 33 inches). Several different species of woolly rat have been found in the region, but M. istapantap is easily the largest, and the least studied. It is also one of the largest rodents in the world, next to species such as pacarenas and capybaras. Now, zoologist František Vejmělka has become the first to document this mysterious nocturnal rodent in the wild, catching the creature on both photo and video as it scurries down a tree branch at just past sunset. 'It seems that the rarity of the Subalpine Woolly Rat in museum collections and the limited knowledge on its ecology do not reflect its true rarity in nature, but are rather connected only to the remoteness of the habitats it occupies and to the fact that it cannot be recorded by standard methods of small rodent trapping,' Vejmělka said in a study recently published in the journal Mammalia. Isolated island habitats can lead to the evolution of some exotic and unusual fauna. Along with outsize rats, New Guinea is home to birds of paradise, iridescent snakes, fanged frogs, grunting fish, tree kangaroos, and several rare species of echidna that exist nowhere else on Earth. Mallomys is a whole genus endemic to the island, and consists of four species of woolly rat. The other species have slightly better documentation, but M. istapantap was first described in 1989 and only visually documented through an illustration in 1995. Until now, the only way to study it up close has been through a handful of museum specimens. M. istapantap is an herbivore that eats mostly ferns and lives in mossy forests or grasslands near the mountains. It is mostly terrestrial—though still able to climb trees if it needs to escape predators—and its thick and shaggy fur keeps it from feeling the chill of high elevations. The species name 'istapantap' is Melanesian Pidgin (spoken by the local Indigenous people) and means 'living above' or 'it is on the top.' This knowledge of the creature's existence shows that it is probably glimpsed regularly among the roots and leaves by locals. Hunters who helped Vejmělka collect samples seemed to know areas where he was most likely to find M. istapantap, though population numbers are still unknown. In addition to having local hunters as his guides, Vejmělka set up a camera trap on a fallen log over a stream in a dense forest on Mount Wilhelm—the highest mountain in New Guinea. The camera ran for eight nights until a male M. istapantap, eyes shining in the darkness, was filmed crawling across the log. Woolly rat species that live in lower elevations have longer tails, while those in higher elevations have shorter tails—an axiom that also applies to the white-tipped tail of M. istapantap. They have dark, brownish-grayish fur with white undersides and pale feet, and females are slightly larger than males. Vejmělka also discovered a color variation never seen before in the species (or any rodent species in the Hydromyini group of rodents, for that matter), which features a streak of yellow on the chest that he thinks is either genetic or staining from sebaceous glands. (This might be related to territorial behavior.) 'The results presented here show primarily the persisting importance of conducting field expeditions in the present, particularly to understudied regions of the Earth,' said Vejmělka. 'The combination of modern and traditional detection methods […] resulted in the first specimen records of this remarkable rodent in over 30 years.' You Might Also Like The Do's and Don'ts of Using Painter's Tape The Best Portable BBQ Grills for Cooking Anywhere Can a Smart Watch Prolong Your Life?

DOWNLOAD THE APP

Get Started Now: Download the App

Ready to dive into a world of global content with local flavor? Download Daily8 app today from your preferred app store and start exploring.
app-storeplay-store