Scientists extracted DNA from mummified cheetah remains and made a surprising discovery

Seven Ancient Cheetah Mummies Found in Saudi Caves Rewrite the Peninsula’s Wildlife History

Activelifezero.com – In the hyper-arid limestone caves scattered near Arar, a city in Saudi Arabia’s northern reaches, researchers stumbled upon a cache of natural history that no one had anticipated: seven cheetahs preserved by millennia of dry cave air, their soft tissue and skeletal structures remarkably intact. The finds, uncovered during systematic wildlife surveys conducted in 2022 and 2023 by teams affiliated with the National Center for Wildlife, represent the first documented instance of natural mummification in the species. What began as a routine ecological inventory of cave habitats quickly became a genetic detective story with consequences for how conservationists think about reintroducing cheetahs to the Arabian Peninsula.

A Graveyard of Forgotten Predators

The five caves that yielded the mummies also contained skeletal fragments belonging to 54 additional cats. Researchers were able to date five of those additional remains, with the oldest pushing back roughly 4,000 years. The two mummies that underwent full genetic analysis carried radiocarbon ages spanning approximately 130 to 1,870 years ago — meaning at least one of these animals lived and died within the last millennium. The cave environment, with its extreme aridity and stable temperatures, acted as an unintentional preservation chamber, halting decomposition long enough for soft tissue to survive in a state rarely seen outside of deliberate embalming.

Why the cats entered the caves remains an open question. The research team has ruled out simple accident or the notion that dying animals sought seclusion in the rock shelters. The precise behavioral motivation is still under investigation, though the hyper-arid microclimate of the caves is credited with producing the mummification itself.

Genomes Reveal a Second Subspecies

For decades, the prevailing view held that only the Asiatic cheetah — classified as Acinonyx jubatus venaticus — had ever set foot on Saudi Arabian soil. That subspecies is now critically endangered, with a small wild population persisting in Iran, and cheetahs across the broader peninsula were declared locally extinct during the 1970s. The species as a whole occupies barely 9 percent of its historic range across Africa and western Asia.

Complete genome sequences extracted from three of the seven mummies shattered that single-subspecies assumption. Two of the oldest specimens proved genetically closer to Acinonyx jubatus hecki, the Northwest African cheetah, a lineage previously thought to have never crossed into Arabia. The results, published in January in the journal Communications Earth & Environment, establish that at least two distinct cheetah lineages once roamed the peninsula over successive millennia. It was also, according to a news release accompanying the paper, the first time DNA has been successfully recovered from naturally mummified cheetahs or any large feline.

“It was highly surprising,” said lead author Ahmed Al Boug, an ecologist researcher and deputy CEO of the National Center for Wildlife in Saudi Arabia. “This finding represents the first documented case of natural mummification in cheetahs, and first physical evidence that cheetah subspecies occurred in the Arabian Peninsula.”

“Moreover, cave use by cheetahs is extremely atypical behavior, making both the discovery itself and the context in which it occurred entirely unexpected,” he added in an email.

Implications for Reintroduction

Knowing which lineages historically thrived in the region gives conservation planners a concrete target list. Rather than importing animals from ecologically mismatched populations, managers can prioritize cheetahs whose ancestors were already adapted to the peninsula’s terrain, prey base, and climate. The study authors plan to examine the remaining mummies and skeletal fragments to identify subspecies affiliations in additional samples, further sharpening that picture.

The genetic work also intersects with a parallel reproductive breakthrough: two cheetah cubs were recently born via in-vitro fertilization, marking the first successful IVF births for the species. Together, the ancient DNA evidence and the assisted-reproduction milestone offer complementary tools for rebuilding wild populations.

“This discovery is significant in that it represents the easternmost record of an African cheetah subspecies and demonstrates that northern Saudi Arabia was occupied by multiple cheetah lineages over millennia,” Al Boug said. “Together, these findings refine our understanding of cheetah landscape use, clarify timelines of regional extirpation, and improve resolution on the subspecies historically present in this region.”

An Ecological Bridge, Not a Dead End

Adrian Tordiffe, a veterinary wildlife specialist based in India and a lecturer at South Africa’s University of Pretoria, who was not involved in the study, called the temporal spread of the finds particularly striking. Some of the remains date to only about a century ago, meaning cheetahs persisted in Saudi Arabia far more recently than the public had assumed.

“Even more striking is that the remains show different subspecies of cheetahs lived there at different times,” Tordiffe said in an email. “This tells us the Arabian Peninsula was once an important natural bridge for cheetahs, not an ecological dead end.”

He noted that the discovery hands conservationists clear, physical evidence of which lineages occupied the area in a not-so-distant past, allowing reintroduction programs to select animals that are ecologically appropriate for the landscape rather than importing cheetahs from entirely different evolutionary backgrounds. The caves near Arar, long silent, now speak in the language of ancient genomes — and their message reshapes how scientists map the cheetah’s vanished range.