Researchers Just Identified The Oldest Known Hippopotamus Ivory Artifact Ever Found In The Iberian Peninsula

Published September 26, 2025

The object, which was originally excavated in 1977, dates back to the Copper Age — and it's over 4,000 years old.

Hippo Ivory Artifact From The Iberian Peninsula

University of BarcelonaThe object made of hippopotamus ivory, the purpose of which is still unclear.

Researchers have identified the oldest hippopotamus ivory object ever found in the Iberian Peninsula, a 4,000-year-old object that provides new details about long-distance trade networks during Europe’s Copper Age.

The artifact, originally excavated in 1977 from the Copper Age settlement of Bòbila Madurell in Sant Quirze del Vallès near Barcelona, has been re-examined by researchers from the Prehistoric Studies and Research Seminar (SERP) at the University of Barcelona. Their findings were published in the Journal of Archaeological Science: Reports.

Though the object has long been held in the Museu d’Història de Sabadell, experts didn’t realize just how significant it was until now. Since it dates back to a time when hippopotamus ivory was once thought to be unheard of in the region, researchers believe this find can help shed new light on Europe’s Copper Age trade routes.

The Hippopotamus Ivory Object’s Mysterious Function Puzzles Researchers

According to the researchers, the object is just under four inches long, about half an inch wide, and weighs in at 0.38 ounces. Using Fourier transform infrared spectrometry (FTIR) combined with anatomical and taxonomic identification, scientists determined the material came from “a first lower incisor of Hippopotamus amphibius.” Radiocarbon dating places the artifact in the second quarter of the third millennium B.C.E.

Though it’s clear the ivory object is significant due to its age, the exact purpose of the object remains unclear, according to researchers. One proposed theory suggests the piece may have been some kind of “stylized human figurine or idol,” while another theory claims that the object was “linked to textile activity, perhaps a beater.”

Oldest Hippopotamus Ivory Object In Spain

University of BarcelonaThe ivory object pre-dates any other artifacts like it found in the Iberian Peninsula.

This textile theory gains support from archaeological context. The hypothesis “is related to the presence of two spindle whorls in the same structure in which it appeared and to the stains of red pigment, made of a mixture of iron oxyhydroxides and an organic binder, such as animal fat,” researchers noted.

In any case, the dating clearly makes this the earliest hippopotamus ivory object ever found in the Iberian Peninsula. While the object’s function is less clear, the mere presence of the artifact indicates the existence of sophisticated trade relationships during Europe’s Copper Age.

How The Artifact Sheds Light On Sophisticated Mediterranean Exchanges During The Copper Age

The discovery provides new insights into prehistoric trade networks across the Mediterranean. “Its analysis provides significant insights into the long-distance networks involved in the trade of ivory, which had been previously established in southern and central Iberia but not in this region,” researchers wrote in the study.

The team noted that while elephant ivory from Africa and Asia has been documented in southern Iberia through North African trade routes, “hippopotamus ivory is rarer and is often dated to later stages.” This makes the dating of the re-examined object particularly significant.

“This object therefore opens the door to consider other distribution routes centered on the north-western Mediterranean, such as those that had operated during the Catalan Middle Neolithic Sepulcres de Fossa (pit graves) culture,” the researchers added.

The artifact joins numerous other exotic materials that traveled vast distances to reach prehistoric Iberia, including Sardinian obsidian, Baltic amber, and elephant ivory.

Hippopotamus Amphibius

Wikimedia CommonsHippopotamus amphibius, the same type of hippo from which the ivory was taken.

Evidence from Andalusia from around the time the object was created shows that southern Iberia maintained close contact with North Africa during this period, offering one potential pathway for hippopotamus ivory.

However, the fact that the discovery was made in northeastern Iberia also suggests additional routes in the northwestern Mediterranean, possibly involving maritime connections to the Balearic Islands and Sardinia.

The research was funded by the Ministry of Culture of the Government of Catalonia and the State Research Agency of the Spanish Ministry of Science, Innovation and Universities. The artifact had been stored at the Museu d’Història de Sabadell for decades before its true significance was recognized through modern analytical techniques.

This exceptional discovery not only documents the earliest use of hippopotamus ivory in the Iberian Peninsula, but also highlights the complex web of overland and maritime exchanges that connected prehistoric Mediterranean societies thousands of years ago.


Next, read about the Reconquista, the centuries-long battle for control of the Iberian Peninsula. Or, read the chilling story of the man who was killed by his pet hippo.

author
Austin Harvey
author
A staff writer for All That's Interesting since 2022, Austin Harvey has also had work published with Discover Magazine, Giddy, and Lucid, covering topics including history, and sociology. He has published more than 1,000 pieces, largely covering modern history and archaeology. He is a co-host of the History Uncovered podcast as well as a co-host and founder of the Conspiracy Realists podcast. He holds a Bachelor's degree from Point Park University. He is based in Pittsburgh, Pennsylvania.
editor
Jaclyn Anglis
editor
Based in Brooklyn, New York, Jaclyn Anglis is the senior managing editor at All That's Interesting, where she has worked since 2019. She holds a Master's degree in journalism from the City University of New York and a dual Bachelor's degree in English writing and history from DePauw University. In a career that spans 11 years, she has also worked with the New York Daily News, Bustle, and Bauer Xcel Media. Her interests include American history, true crime, modern history, and science.
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Harvey, Austin. "Researchers Just Identified The Oldest Known Hippopotamus Ivory Artifact Ever Found In The Iberian Peninsula." AllThatsInteresting.com, September 26, 2025, https://allthatsinteresting.com/iberian-peninsula-oldest-hippopotamus-ivory-artifact. Accessed September 27, 2025.