Researchers Explore Rare Case of Crocodile Mummification

Technicians restore a mummified crocodile at the Louvre-Lens museum for the exhibition Animals and Pharaohs. (AFP)
Technicians restore a mummified crocodile at the Louvre-Lens museum for the exhibition Animals and Pharaohs. (AFP)
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Researchers Explore Rare Case of Crocodile Mummification

Technicians restore a mummified crocodile at the Louvre-Lens museum for the exhibition Animals and Pharaohs. (AFP)
Technicians restore a mummified crocodile at the Louvre-Lens museum for the exhibition Animals and Pharaohs. (AFP)

Although Ancient Egyptians mummified thousands of animals over the course of one millennium, many details of these mummification protocols remain unknown.

A new study that examined an Egyptian crocodile mummy at the Musée des Confluences (Lyon, France) dating back to the Late Period (722–332 BC) has revealed new exciting details in this field.

It was believed that ancient Egyptians preserved the internal organs of animals during mummification in all ages. However, the new study conducted on the crocodile mummy found in the French Museum, showed that everything beneath the skin of the crocodile including the organs, muscles, and even most of the skeleton was removed.

According to the study published in the PLOS One journal, French researchers at the Synchrotron Radiation Microtomography Facility at the Paul-Valéry University, Montpelier, used the Propagation Phase-Contrast X-ray Synchrotron microtomography technique that provides accurate 3D images of the materials and tissues that cannot be easily observed with the conventional X-ray techniques.

Imaging showed that all organs and most of the bones, except for the head and limbs, were removed in preparation for embalming, through a single incision that runs along the ventral side of the crocodile from the throat to the tail. The emptied parts were stuffed with a variety of plants, most of which are herbs.

In the introduction of their study, the researchers said they didn't explore the plants, but they preserved them for future studies that could provide additional information about the nature and context of this rare practice.

Egyptian Archaeologists Dr. Khaled Salam, professor of ancient Egyptian antiquities at Zagazig University, believes that this rare practice took place in the Late Period and aimed at giving the crocodile more sanctity by treating it like humans.

Salam suggested that the internal organs were removed to avoid the growth of bacteria that may spoil the mummy.



Cute carnivores: Bloodthirsty California Squirrels Go Nuts for Vole Meat

This handout photo obtained from the University of California on December 18, 2024, shows ground squirrels eating voles in Davis, California. Sonja Wild / University of California, Davis/AFP
This handout photo obtained from the University of California on December 18, 2024, shows ground squirrels eating voles in Davis, California. Sonja Wild / University of California, Davis/AFP
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Cute carnivores: Bloodthirsty California Squirrels Go Nuts for Vole Meat

This handout photo obtained from the University of California on December 18, 2024, shows ground squirrels eating voles in Davis, California. Sonja Wild / University of California, Davis/AFP
This handout photo obtained from the University of California on December 18, 2024, shows ground squirrels eating voles in Davis, California. Sonja Wild / University of California, Davis/AFP

Squirrels might look like adorable, nut-hoarding furballs, but some are ruthless predators that hunt, tear apart, and devour voles.
That's the startling finding of a new study published Wednesday in the Journal of Ethology -- the first to document widespread carnivorous behavior in these seemingly innocent creatures.
"There is always something new to learn and wild animals continue to surprise us," lead author Jennifer E. Smith, an associate professor of biology at the University of Wisconsin-Eau Claire told AFP.
"In a changing world with many technological advances, there is no replacement for direct observation of natural history, including watching the squirrels and birds that often visit our backyards."
The observations were made this summer, during the 12th year of a long-term study conducted at Briones Regional Park in Contra Costa County, California.
Between June and July, researchers recorded 74 interactions involving California ground squirrels and voles, with 42 percent of them involving active hunting of their fellow rodents.
Co-author Sonja Wild, a postdoctoral researcher at the University of California, Davis, admitted she was initially skeptical of the reports brought to her by undergraduate students who first witnessed the behavior.
"I could barely believe my eyes," said Wild. But "once we started looking, we saw it everywhere."
It was previously known that as many as 30 species of squirrels opportunistically consume meat, ranging from small fish to birds. However, it was unclear whether this behavior stemmed from scavenging or active predation.
The new study is the first to confirm that hunting is, in fact, a common behavior.
Researchers observed squirrels crouching low to the ground before ambushing their prey, though more often, they chased voles, pounced, and delivered a neck bite followed by vigorous shaking.
The study also found that the squirrels' carnivorous behavior peaked during the first two weeks of July, coinciding with a surge in vole populations reported by citizen scientists on the iNaturalist app.
Other animals, such as raccoons, coyotes, and spotted hyenas, have been known to adapt their hunting strategies in response to human-induced changes in their environments.
"In a changing world, it can be daunting to consider all of the challenges that human presence, habitat loss, and climate change impose on animals," said Smith.
"Our study offers an exciting silver lining, demonstrating the incredible flexibility that some animals possess."
Several questions still remain unanswered.
Researchers hope to investigate how widespread hunting behavior is among squirrel species, whether it is passed down from parents to pups, and how it affects their broader ecosystems.