Latest news with #Felislybica
Scroll.in
2 days ago
- Science
- Scroll.in
The enigmatic wild ancestors of domestic tabbies
The Afro-Asiatic wildcat (Felis lybica) is the world's most widely distributed wildcat, but experts and information on the species are scarce. The species' range is immense, stretching across most of Africa, Southwest and Central Asia, India, China and Mongolia. But Arash Ghoddousi, lead author for F lybica 's 2022 IUCN species conservation assessment, says the study team found 'few people [who] knew anything about the cats'. That seeming lack of human curiosity is surprising, considering the domestic tabbies we keep as pets and lavish billions of dollars on annually are descended, and still closely related to, the Afro-Asiatic wildcat. One researcher who has shown intense interest is Marna Herbst, now a regional ecologist for South African National Parks. Previous research on F lybica had been based on opportunistic sightings and scat and stomach analysis. Herbst changed that, spending roughly four years and 10-12 hours nightly observing the cats in the harsh unforgiving landscape of the southern Kalahari Desert for her PhD research, published in 2009. She was the first (and remains the only) scientist to conduct such a long-term study on the species documenting its behaviors and population genetics. Searching for the wildcat Herbst carried out her study in the Kgalagadi Transfrontier Park, a known African wildcat habitat straddling the borders of South Africa and Botswana. The small wildcats there were assumed to be far enough from urban areas to still be genetically pure, not having interbred with domestic cats (deemed one of the wild species' greatest risks). Sighting the little wildcats relatively often, Herbst hoped they would also be relatively easy to catch, collar and track. They weren't. Twenty years later, she recalls the challenges. The small cats are shy and elusive, taking cover in fox or aardvark holes and under tree roots; on farms, they hide amid tall, dense corn stalks. Adding to her difficulties, the cat is nocturnal and practically impossible to study in its habitat without aid of radio telemetry. To accomplish that, they must first be caught. Herbst recalls that in trying, she captured lots of other stuff. Jackals in particular were attracted to the chicken-baited cage traps. But over time, she succeeded in catching and collaring numbers of the elusive cats. Another hazard of low-budget research on a noncharismatic species: Herbst's hand-me-down 4×4 vehicle, in which she spent countless hours alone rumbling in the dark over roadless terrain, took a terrible beating. But those nights rewarded her with sights few ever see, encountering the park's big cats, including the famed black-maned lion (Panthera leo leo), cheetah (Acinonyx jubatus) and leopard (P pardus). Once in the dark, while sipping coffee inside her 4×4, she was startled by a full-grown hyena that nonchalantly sniffed the side-view mirror. They're 'much bigger than you think', she says. Over time, Herbst came to know the Afro-Asiatic wildcat as 'a really special little species that plays a vital role in ecosystems'. Small cat, big adaptability You could be forgiven for mistaking an Afro-Asiatic wildcat for a family pet. They're the size of a large domestic cat (F catus), but with longer legs. Their coloration varies by region from reddish, sandy and tawny brown, to greyish. They sport faint tabby stripes or spots, more pronounced in humid areas, and paler and darker in drier climes. Their tails are slim and tapered with a dark tip. A distinguishing feature, Herbst says, is the pinkish-orange tint of their ears. Afro-Asiatic wildcats are highly adaptable to landscape (especially bush and steppe), season and prey availability. They prefer hunting small rodents but dabble in reptiles and invertebrates. Herbst recalls male cats taking down spring hares roughly the same size as they were. Cats with waterholes in their territories became bird-hunting specialists. One female was great at hunting sandgrouse as they came to drink. The stomach of an Afro-Asiatic wildcat from Oman contained beetles, grasshoppers, lizards, mammal fur and a date pit. The species is mostly solitary and roams widely. In the United Arab Emirates, a collared cat had a larger home range (52.7 square kilometers or 20.3 square miles), far larger than that reported in the more optimal habitat (around 3.5 km² or 1.4 mi²) of the Kalahari, where food and water are relatively easy at hand. Ghoddousi says the wildcat's remarkable adaptability to various habitats, tolerance of different elevations and climates, plus its capacity to coexist with larger predators make it very special – allowing it to spread over two continents. Because they're so widely distributed, with incidental sightings reported from many locations, the species is considered relatively stable and 'of least concern'. But Ghoddousi warns this might not reflect the species' true state in the wild. Due to lack of research, and therefore lack of data, the real-world trend for far-flung Afro-Asiatic wildcat populations remains unknown. Ghoddousi says the big risk is that, as global change escalates, the species could slip away before science notices and conservationists can take action. Ranging over such a wide area, the Afro-Asiatic wildcat goes by many regional names. It's the African wildcat to some, the Asiatic wildcat to others, and the Indian desert cat to still others. Scientifically, the Afro-Asiatic wildcat is divided into three evolutionarily similar subspecies. The first, F lybica lybica, occurs in Eastern, Western and Northern Africa and the Arabian Peninsula. The second, F lybica cafra (the topic of Herbst's PhD), occurs in Southern Africa. The third, F lybica ornata, is found in Southwestern and Central Asia, Pakistan, India, Mongolia and China. The precise boundaries of subspecies' ranges are unclear. Until 2017, these three subspecies were lumped together with the European wildcat and considered subspecies of F silvestris. But further investigation demanded a split: Now, populations that roam from the steppes and bush of Africa and Asia are classified as F lybica, while the European wildcat is classified as a separate species (with its bushy tail and more distinctive coat markings, F silvestris occurs in fragmented populations across Europe, Turkey and the Caucasus. These geographically separated cat populations mixed things up genetically at various points in time, due to natural changes or, sometimes, thanks to people. Thousands of years ago, this long-term and complex intermingling process birthed the first domestic cat. Domestication Paleogeneticist Claudio Ottoni wouldn't describe himself as a cat person, and his work takes place far from the wild. But under his microscope, the ancient lives and movements of the Afro-Asiatic wildcat come to life, revealing hints to the tantalising mystery as to how it long ago threw in its lot with humanity to evolve into today's domestic cat species. Paleogeneticists, it turns out, find the small wildcat just as elusive as field biologists. Compared with other domesticated animals, hypotheses about early cat domestication remain grounded in scant evidence and open questions. Ancient cat bones are scarce, and distinguishing differences between wild and domestic skeletal features is challenging. But Ottoni has been a dogged researcher, puzzling for years over perplexing data, embracing and developing a hypothesis, then revising the shape of that hypothesis as new technology and data become available to move toward a more robust theory. An early theory, published in 2017, was that farmers in southwest Africa had domesticated cats and brought them to Cyprus in the early Neolithic period (at least 7,000 years ago) to control rats and mice that damaged stored grain. This origin story was based on clues found in the DNA of 352 long-dead felids. Researchers analysed maternally inherited mitochondrial DNA in bits of cat bone and teeth, as well as skin and hair samples found at archaeological sites. The oldest samples included a complete cat skeleton, dated to roughly 7500 BCE, found buried with a man on Cyprus, suggesting the hypothesis that domestication started here. Other samples included six skeletons, dating to around 3700 BCE, found in an elite Predynastic Egyptian cemetery. Still other examples were found in archaeological digs at the Roman-Egyptian port of Berenike on the Red Sea. Ottoni also compared the ancient cat DNA samples with modern wildcat samples from Bulgaria and Eastern Africa. Together, the DNA seemed to indicate that the domestic cat's worldwide conquest began in the Fertile Crescent (perhaps on Cyprus some 7,000 years ago), then gained momentum during Classical Antiquity about 2,500 years ago, when the Egyptian cat successfully spread throughout the Old World along land and sea trade routes. This analysis seemed to confirm that while the Afro-Asiatic wildcat was the ultimate source of the domesticated cat, its evolution and spread wasn't simple: Though the North African/Southwest Asian F lybica was a source, both the Near Eastern and Egyptian F lybica populations also contributed to the domestic cat's gene pool at several points in history. New tech, better theory Since 2017, new technology and more data have modified, added detail and complicated this storyline. While earlier work relied on mitochondrial DNA analysis, researchers were able to analyse nuclear DNA for an updated theory in 2025. This higher-resolution analysis reveals the full genetic code of individual cat specimens, including not only the maternal, but also the paternal inherited DNA. It provides 'the actual ancestry,' Ottoni says. And this new data punched an unexpected hole in the previous theory of cat domestication. For one, domestication happened thousands of years later than thought, and then was probably not due to African farmers who traveled to Cyprus. 'Evolutionarily speaking, it's a very peculiar case,' Ottoni says of the discordance between the 2017 and 2025 DNA findings. The new data showed what scientists call 'mitonuclear discordance,' where analyses using mitochondrial DNA markers yield different conclusions than those using nuclear DNA markers. Surprisingly, samples that the researchers thought were F. lybica turned out to be those of the European wildcat. So, while wildcats were indeed taken to Cyprus, Ottoni explains, this might have been an isolated attempt of Neoolithic people to domesticate European wildcats, rather than wildcats brought from Africa. The evidence now suggests that European wildcat and African wildcat distribution probably overlapped in the past, perhaps due to climatic shifts or other natural causes. Because both species are interfertile, they sporadically bred, leading to a mixed population living in Turkey. According to the updated theory, domestic cats with a lybica genome only appeared in Europe about 2000 years ago, during Classical Antiquity, Ottoni says, but then adds, 'We can't say precisely when the domestication process that led to the cat dispersal started.' Perhaps, and more likely, domesticated cats did come first from Egypt, where cats were buried in the Hierakonpolis (the ancient Egyptian royal residence). But whatever the exact origin story, we do know that 'in evolutionary terms, [the domestic cat is] one of the most successful mammal species in the world,' Ottoni says. Domestic cats today are found on every continent except Antarctica. (They were introduced to sub-Antarctic Marion Island in 1949 to control mice, but were later eradicated due to negative impacts on native birds.) Researchers have also learned that the close genetic kinship shared by domesticated and wild felids species really matters: The widespread prevalence of F catus, and its capacity to interbreed with F lybica, is among the most serious threats to the Afro-Asiatic wildcat's survival. Big challenges Hybridisation with domestic cats is widespread across the Afro-Asiatic wildcat's range, though some studies, including Herbst's work, have shown that wildcat populations in South Africa at least, especially in protected areas, appear to remain genetically pure. However, according to the 2022 IUCN species assessment, there's insufficient information on the level of hybridisation with domestic cats in other parts of the range, and therefore, this threat should not be underestimated or ignored. As such, Herbst points to responsible pet ownership as key to Afro-Asiatic wildcat survival. That includes spaying by pet owners of their domestic cats that aren't being bred, and also community spaying of feral cats (especially in urban areas bordering protected areas where wildcats live). Education is important, too, she notes. Though spaying is an important conservation measure, spayed domestic cats can still seriously impact wildcat food sources. The IUCN assessment points out that feral domestic cats compete with wildcats for prey and space, and there is also a high potential for disease transmission between them. Other threats include the risk of roadkill and poisoning and conflicts with farmers and local people due to attacks on poultry by wildcats leading to retaliatory killings. Another serious threat, Ghoddousi says, is lack of information, causing scientists to underestimate the risk a species faces. Unfortunately, that is always the case when you don't have enough data, he says. You can't make a meaningful judgment about a species status if you simply do not know.
Yahoo
23-05-2025
- Science
- Yahoo
Cat domestication didn't necessarily happen like we thought it did, new studies suggest
When you buy through links on our articles, Future and its syndication partners may earn a commission. The origins of domestic cats, and their travels with ancient humans, are as enigmatic as the animals themselves. But now, scientists have found new evidence supporting the idea that the unfathomable felines were likely first domesticated in ancient Egypt, where they were worshipped as part of a cult — or in another region of North Africa. Researchers already knew that modern-day lap cats (Felis catus) derived from African wildcats (Felis lybica). But exactly when and where these wildcats first accepted human companionship is a matter of intense debate. Now, two studies published on the preprint server bioRxiv in March 2025 — meaning they have not yet been peer-reviewed — offer tantalizing new insights into how the world's second-most-popular pet may have come to coexist with humanity and spread around the world. One of the prevailing hypotheses is that cats were domesticated in the Levant, a region of the Middle East bordering the Mediterranean Sea, during the Neolithic period 12,000 to 5,000 years ago. The region is part of the Fertile Crescent, where agriculture first emerged. The theory suggests that when humans switched from a hunter-gatherer lifestyle to farming, rodents became a problem. Cats were attracted to the rodents and, given the felines were eating the pests, humans were happy to cohabit with them. Related: Over 40% of pet cats play fetch — but scientists aren't quite sure why This theory is based on the discovery of a cat buried at the foot of a human in Cyprus, which is off the coast of Turkey and Syria. "The first evidence of human association with a cat comes from Cyprus about 10,000 years ago," Jonathan Losos, an evolutionary biologist at Washington University in St. Louis and author of "The Cat's Meow: How Cats Evolved from the Savanna to Your Sofa" (Viking, 2023), told Live Science. That suggested the cat-human association may have begun in the Fertile Crescent, said Losos, who was not involved with the new research. But both of the new papers cast doubt on this idea, suggesting cat domestication actually took place much later, and that cat remains suggesting earlier interactions were actually wildcats. In one of the news studies, the researchers conducted genetic analyses on early cat specimens, which revealed that cats found in Europe and Turkey from between 11,000 and 2,300 years ago were not the direct ancestors of today's domestic cats. They were instead European wildcats (Felis silvestris) that had naturally hybridized with African wildcats where the ranges of the species overlapped. "We successfully reconstructed nuclear genomes of several Neolithic cats from Anatolia and Southeast Europe and proved that these cats are European wildcats," said Marco De Martino, a palaeogeneticist at the University of Rome Tor Vergata and lead author of the first study. "They were likely exploited for food, pelts or ritual practices," he told Live Science. These weren't pets — they were meant for the stew pot or the collar of a luxurious cloak or as offerings to deities. Instead, the researchers suggest that cat domestication occurred in Africa — either in Egypt or another northern area of the continent, such as modern-day Morocco or Tunisia. Their analysis indicated that modern domestic cats are most genetically similar to African wildcats from Tunisia. To piece together the domestic cat's introduction to the world, the authors then looked at non-genetic evidence of cats in societies in ancient times. Egypt was the most prominent early civilization to encourage the presence of cats, with evidence indicating that they were well-established there by the first millennium B.C., according to the authors. They were worshipped as part of the cult of Bastet, an Egyptian goddess associated with fertility, health, protection and domestic life. Cats are common in ancient Egyptian imagery, both as members of human households and in the form of Bastet herself — early depictions of the goddess style her as a lion, but she later resembled a domestic cat. Based on evidence both from iconography and extensive mummification of cats as part of the worship of Bastet, the second paper concludes that Egypt was likely the main center of cat domestication. While the felines may have been drawn to agricultural production by rodents, one variation of the the hypothesis suggests that they were bred for the production of mummies used in devotional rituals. The large-scale breeding operations may have initiated the domestication process. RELATED STORIES —Pet cats arrived in China via the Silk Road 1,400 years ago, ancient DNA study finds —1,200 years ago, a cat in Jerusalem left the oldest known evidence of 'making biscuits' on a clay jug —World's tiniest cat was a palm-sized tiddler that lived in China 300,000 years ago Cats likely then moved north from Egypt via trade routes. Specimens found in the U.K., date to the late Iron Age, suggesting there was one early wave of cats entering Europe during this period. Domesticated cats then moved into Europe with greater intensity during periods of Greek and Roman dominance. However, the authors caution that genetic data from mummified cat remains in Egypt has not yet been reliably analyzed. "We believe that Egypt remains the best candidate as the birthplace of domestic cats given the extensive extant iconographic evidence, but we have no genetic data from Egypt to demonstrate that," noted De Martino, who was a co-author on the second paper as well. On genetic grounds, at least, origins in western North Africa may be on firmer ground. "The lack of genomic data from ancient or modern cats in Egypt is the big question mark that needs to be answered — when that is added, it may swing genetic support back to the Out of Egypt hypothesis," Losos said.
