The Roman Empire did not single-handedly wipe entire species off the planet on a routine basis, but its centuries-long appetite for arena spectacles, territorial expansion, and agricultural transformation contributed directly to the disappearance of several animal populations and pushed others toward eventual extinction. The most dramatic losses were regional: large mammals vanished from North Africa and parts of Europe, whale populations were depleted from the Mediterranean, and endemic species on islands were wiped out by Roman-era land clearing. Untangling which species the Romans truly drove to extinction from those they merely weakened is trickier than it sounds, and the archaeological evidence keeps shifting the picture.
The Arena’s Appetite
Roman public spectacles, particularly the venationes (staged wild-animal hunts), consumed animals on a scale that has no parallel in the ancient world. Ancient writers recorded staggering numbers. At the inauguration of the Colosseum in 80 AD, the emperor Titus reportedly presided over games that killed around 9,000 animals. Emperor Trajan’s victory celebrations in 107 AD reportedly involved 11,000 animals over 123 days. These were not isolated extravaganzas. Smaller arenas across the empire hosted their own beast hunts, and the demand for exotic creatures was steady for centuries.
Getting animals from the wild to the arena floor was brutal and wasteful. Modern comparisons give some sense of the losses involved: when the famous 19th-century animal dealer Carl Hagenbeck shipped exotic animals, the surviving cargo was worth barely a third of the original shipment’s value, with most animals dying en route. Roman-era transport by cart and ship would have been at least as lethal, and ancient sources mention late arrivals and malnourished animals as routine problems rather than exceptional ones. For every lion or elephant that died in the arena, several more likely perished during capture and transit.
The species targeted for arena games reads like a catalog of large, charismatic African and Asian wildlife: lions, leopards, elephants, rhinoceroses, hippopotamuses, bears, crocodiles, ostriches, and wild bulls. The pressure was greatest on populations closest to Roman territory, especially in North Africa and the Near East, where capture operations were most practical.
North African Megafauna
The most convincing cases of Roman-driven extinction involve large animals that once lived in North Africa and the eastern Mediterranean. This region, within easy reach of Roman supply chains, bore the brunt of the beast trade.
The North African elephant is probably the best-known casualty. A smaller relative of the African savanna elephant, this population inhabited the forests and scrublands of the Maghreb (modern Morocco, Algeria, and Tunisia). Carthaginians famously used them in warfare, and Romans captured them for arena displays. By the second century AD, they had vanished from the wild. Whether they constituted a distinct subspecies is still debated, but the population’s disappearance from North Africa during the Roman period is not. Habitat loss from expanding agriculture played a role alongside direct hunting, but the arena trade accelerated the decline of an already shrinking population.
The Atlas bear tells a similar story. This was the only bear native to Africa in historical times, living in the Atlas Mountains and nearby regions. Romans shipped Atlas bears to the arena regularly. Ancient mosaics and texts describe bears in spectacles alongside lions and leopards. The Atlas bear appears to have gone extinct sometime in the late Roman period or shortly after, making it one of the few large mammals whose complete disappearance aligns closely with the era of Roman arena games.
Lions once ranged across North Africa, the Middle East, and even parts of southeastern Europe. The Barbary lion of North Africa and the populations in Greece and Turkey were gradually eliminated over centuries, with Roman hunting and capture contributing to their disappearance from most of these regions. Lions were gone from Greece by about the first century AD, right around the time Roman demand for arena animals was intensifying. North African lion populations lingered longer but were severely diminished during the Roman centuries. The final Barbary lions survived in Morocco into the early 20th century, so Rome did not finish them off, but it helped push them into increasingly remote mountain refuges.
Hippopotamuses once lived along the Nile in Egypt and possibly in other North African waterways. They were popular spectacle animals. Roman-era capture along the Nile contributed to their regional extinction in Lower Egypt, though hippos persisted further south in sub-Saharan Africa. The Syrian elephant, a western Asian population, had already disappeared before Rome’s peak, likely due to a combination of Hellenistic-era capture for warfare and habitat loss, but early Roman expansion into the Near East overlapped with the tail end of that population’s decline.
European Large Mammals Under Roman Pressure
While North Africa lost its most conspicuous large animals, Europe experienced a different pattern. Rather than outright extinction, many large European mammals underwent steep range contractions that began or accelerated during the Roman period and set the stage for later near-extinction.
A large-scale analysis of European mammal distributions across the Holocene found that several species experienced their first statistically significant geographic declines during the Roman Age. European bison, Eurasian elk, and brown bears all saw their ranges contract sharply during this period. The aurochs, the wild ancestor of domestic cattle, had already begun declining during the Iron Age but continued its slide through the Roman centuries. Aurochs eventually went completely extinct in 1627 in Poland, while European bison were reduced to extinction in the wild before 20th-century conservation breeding programs brought them back.1PubMed Central. Millennial-scale faunal record reveals differential resilience of European large mammals to human impacts across the Holocene – Section: Results
The drivers in Europe were less about arena capture and more about habitat destruction. Roman colonization transformed the European landscape on a massive scale. Forests were cleared for agriculture, timber, and fuel. Roads and settlements fragmented the habitats of wide-ranging species. In the Atlantic and Mediterranean bioregions specifically, habitat loss reached roughly 20% during the Iron and Roman Ages, driven by increasing human population density.2Diversity and Distributions. Recent Sociocultural Changes Reverse the Long‐Term Trend of Declining Habitat Availability for Large Wild Mammals in Europe – Section: Results For large mammals that needed extensive territory, this represented a serious and in some cases irreversible squeeze.
Archaeological evidence from Roman Iberia illustrates how far some species had already retreated. Analysis of bone artifacts from Mérida, the capital of Roman Lusitania (in modern Spain), excluded bison as a possible source material because the genus was simply not recorded in faunal assemblages from the Roman period in that region. The aurochs had similarly disappeared from Iberia by the Iron Age.3Scientific Reports. Characterization of raw material in textile bone instruments from the capital of the Roman Province of Lusitania (Mérida, Spain) – Section: Results These were not necessarily Roman-caused losses, but they show how the empire operated in landscapes already emptied of their largest wild inhabitants.
Whales and a Forgotten Mediterranean Industry
One of the more surprising recent findings in Roman-era extinction research involves whales. North Atlantic right whales and grey whales are not species most people associate with the Mediterranean, but ancient DNA analysis of whale bones from Roman and pre-Roman archaeological sites near the Strait of Gibraltar has confirmed that both species once frequented the region. Researchers identified bones from three right whales and three grey whales at sites in the Gibraltar area, suggesting the Mediterranean likely served as calving grounds for both species.4PubMed Central. Forgotten Mediterranean calving grounds of grey and North Atlantic right whales: evidence from Roman archaeological records
Both species are coastal and slow-moving, making them accessible to ancient hunters working from small boats. The researchers raised the possibility that Romans engaged in a whaling industry that has been essentially forgotten by history. Right whales were later driven from the eastern North Atlantic by medieval and early modern commercial whaling, but the Roman-era evidence suggests exploitation of these animals may have begun much earlier than previously thought.
Additional evidence of Roman whale product use has turned up far from the coast. Zooarchaeological analysis confirmed the presence of North Atlantic right whale material at an inland site in Portugal, Castelo Velho de Safara, dating to the Roman Republican period. This finding points to organized trade in whale products during an era when no one expected it.5PLOS ONE. The Zooarchaeology of ancient whaling practices in Portugal: A review and a new Roman Republican contribution at Castelo Velho de Safara – Section: Results
Grey whales disappeared from the entire North Atlantic under circumstances that remain partly mysterious. They survive today only in the Pacific. Whether Roman-era exploitation played a meaningful role in that Atlantic disappearance or merely overlapped with a decline driven by other factors remains an open question. What the archaeological record does establish is that Rome’s coastline was home to whale species that no longer exist there, and Romans were killing them.
Island Endemics That Disappeared
Some of the cleanest examples of Roman-era extinction involve small endemic animals on Mediterranean islands. Islands are especially vulnerable to ecological disruption because their species evolved in isolation, often without natural predators, and in small populations that cannot absorb sudden shocks.
Corsica provides a well-documented case. Analysis of small mammal fossil assemblages from northern Corsica spanning the last 2,500 years revealed a mass extinction of small endemic species. The timing is somewhat uncertain, falling either in the Late Roman period (roughly the 2nd through 5th centuries AD) or during the medieval period (11th through 13th centuries), but the cause appears to have been large-scale agricultural deforestation that destroyed the habitat these animals depended on.6Journal of Archaeological Science. Small Mammal Fossil Assemblages as Indicators of Environmental Change in Northern Corsica during the Last 2500 Years
The same Corsican record documents the arrival of the black rat (Rattus rattus) to the island and probably the wider northwestern Mediterranean, dated to between the 4th and 2nd centuries BC. The black rat is one of history’s most destructive invasive species, and its spread through the Roman trade network wreaked havoc on island ecosystems. Endemic rodents, shrews, and other small mammals that had never encountered a competitor like the black rat were at an immediate disadvantage. The combination of forest clearing for Roman-era agriculture and the introduction of an aggressive invasive species was lethal for species that had nowhere else to go.
Corsica was not unique. Similar patterns played out across Mediterranean islands where Roman colonization brought agriculture, livestock, and commensal species like rats. The specific endemic species lost on each island are not always well documented, but the ecological pattern is consistent: Roman-era land transformation pushed small, range-restricted island animals over the edge.
Marine Life in the Adriatic and Beyond
The Roman impact on marine ecosystems extended well beyond whales. A reconstruction of historical changes in marine resources in the Adriatic Sea found that human activities have influenced marine resource abundance since at least Roman times, with the pace of depletion accelerating dramatically in the 19th and 20th centuries. Among the species examined, 11% had been completely extirpated from the Adriatic, and large predators and consumers, species exceeding roughly a meter in length, were the most severely affected.7Europe PMC. Historical Changes in Marine Resources, Food-web Structure and Ecosystem Functioning in the Adriatic Sea, Mediterranean
Romans were avid consumers of seafood, and Roman-era fish sauce (garum) was an industrial product traded across the empire. Coastal fish processing facilities dotted the Mediterranean shoreline. While the most severe marine depletion came much later, Roman fishing established the beginning of a long decline. The Adriatic data show that the ecosystem’s species composition shifted over centuries toward smaller, lower-level species as larger predators were removed, a pattern that started in antiquity and compounded over time.
It would be misleading to pin modern marine extinctions on Rome specifically. The Roman contribution was the opening chapter of a story that industrial fishing later brought to crisis. But the archaeological record makes clear that the Mediterranean’s marine ecosystems were not pristine when medieval and modern exploitation began. They were already altered.
Silphium, the Plant That Vanished
The Romans did not limit their ecological impact to animals. Silphium, a plant from the Cyrenaica region of modern Libya, was one of the most prized commodities in the ancient Mediterranean. Used as a seasoning, a medicine, and possibly a contraceptive, silphium was so valuable that it appeared on Cyrenean coins. And then it disappeared, completely.
For a long time, scholars assumed silphium was simply overharvested, a victim of its own popularity. More recent analysis has challenged that explanation. Documented environmental changes in ancient Cyrenaica, including widespread deforestation and cropland expansion, likely accelerated desertification and directly disturbed silphium’s habitat, eliminating the conditions the plant needed to germinate and grow. Rather than being plucked to extinction, silphium may have lost the ecosystem it depended on. This reframing marks silphium as possibly the first recorded case of human-induced, climate-related extinction.8Frontiers in Conservation Science. Reassessing the Role of Anthropogenic Climate Change in the Extinction of Silphium
Silphium’s story resonates because it illustrates how Roman-era extinction was not always about direct killing. Habitat destruction, land conversion, and the cascading environmental effects of running a vast agrarian empire could be just as deadly as a gladiator’s spear, especially for species with narrow ranges or specific ecological requirements.
Why the Evidence Is Still Emerging
Pinning an extinction confidently on the Romans is harder than it might seem. Many of the large animals that disappeared from Roman territories, like North African elephants and Atlas bears, left behind very little in the way of skeletal remains. Ancient writers were not keeping biodiversity inventories. They mentioned animals in passing, usually in the context of arena spectacles or military campaigns, which means the historical record is biased toward species that were economically or symbolically important.
Modern techniques have changed what is possible. Ancient DNA analysis and collagen fingerprinting (a method that identifies species from tiny bone fragments based on protein signatures) have allowed researchers to identify whale species from Roman-era scraps that would have been unidentifiable a generation ago. The whale findings near Gibraltar are a direct product of these methods. Similar techniques applied to bone tools from Roman Iberia have confirmed the use of materials from domestic cattle, red deer, and even Asian elephant ivory, painting a more detailed picture of which animals were present or traded in Roman provinces.
The result is that the list of animals affected by Roman activities keeps growing as the technology improves. Species that were not even known to have lived in certain regions are now being identified from archaeological fragments. The grey whale in the Mediterranean is a prime example: before the DNA evidence, no one seriously proposed that grey whales had calved in those waters. The Roman archaeological record, once thought to be well-understood, turns out to contain biological information that researchers are only now learning to read.
Exotic Animals as Imperial Status Symbols
The Roman beast trade was not just about arena entertainment. Exotic animals served as displays of imperial power and geographic reach. An emperor who could produce a rhinoceros or a giraffe in the arena was demonstrating dominion over distant lands. Private citizens and provincial elites also kept exotic animals as markers of wealth and status. This created a commercial pipeline for wildlife that extended from sub-Saharan Africa to India.
The same Mérida bone analysis that documented local fauna also identified a spinning wheel made from Asian elephant ivory, indicating that luxury animal products reached even provincial Roman cities far from any elephant habitat.3Scientific Reports. Characterization of raw material in textile bone instruments from the capital of the Roman Province of Lusitania (Mérida, Spain) – Section: Results Ivory, animal skins, exotic feathers, and live animals all flowed through trade networks that connected the empire to ecosystems thousands of miles away. The ecological footprint of this demand is genuinely difficult to measure, because it was so diffuse and because the species sourced from distant regions (Indian elephants, sub-Saharan rhinos) had large enough home populations that Roman-era offtake may not have been decisive on its own.
Where the trade was most destructive was at the margins: populations that were already small, geographically confined, or ecologically fragile. A lion population in the Atlas Mountains or a bear subspecies restricted to one mountain range could not absorb the sustained removal of adults for decades or centuries. The Roman beast trade was, in ecological terms, a selective pressure that hit hardest on the populations least able to withstand it.