Toad-headed turtle lays eggs in captivity | Tortuga cabeza de sapo desova en cautiverio

By ANA, Erbol:

Toad-headed turtle lays eggs in captivity: its reproductive cycle will be studied

ENVIRONMENTAL NEWS AGENCY

On a day of heavy rain in the city of Trinidad, a toad-headed turtle was found and rescued after being severely injured, with a piece of its shell missing. After undergoing successful surgery and while in the rehabilitation process, it laid eggs in captivity. This will allow researchers to study its reproductive cycle and other previously unknown aspects in Bolivia.

A distress call from a resident of the El Recreo neighborhood on March 9 alerted volunteers to the presence of the injured turtle. Rescuers, doctors Andrés Moreno and Ángelo Velarde, arrived at the scene despite the heavy rain battering the city.

The specimen was immediately taken to the home of Dr. Marcos Greminger Céspedes, where the specialist provided first aid. Hours later, he successfully performed surgery on the turtle at the Teaching Hospital of the Faculty of Animal Sciences at the Autonomous University of Beni, assisted by seventh-semester students from the Veterinary Medicine and Animal Science program.

Photos: L. Varga/ANA | Videos: M. Greminger/ANA

Run over or bitten

“We are treating this chelonian; unfortunately, it appears to have been run over or bitten. Look, a piece of its shell is missing. Today (March 9), when doctors Moreno and Velarde handed it over to me after rescuing it, we administered a painkiller to the turtle so it wouldn’t feel too much pain from the surgery we performed. We cleaned the area before sealing the shell, applied a drying agent inside, and will then proceed with sealing,” said Greminger Céspedes while recording a video, treating the animal, and explaining the surgical procedure to the Environmental News Agency (ANA).

The toad-headed turtle is scientifically known as Mesoclemmys vanderhaegei and belongs to the Chelidae family. In Bolivia, it is commonly called “peta.” It is a freshwater aquatic species that primarily inhabits rivers, streams, lakes, lagoons, and ponds. The toad-headed turtle is a chelonian, as chelonians are an order of reptiles that includes all turtles. In Bolivia, they are mainly found in the departments of Beni, Pando, and La Paz.

This specimen was rescued from the El Recreo neighborhood, located outside the first ring road. In front of it is the Teniente Jorge Henrich Arauz Airport. Around this area near the airport, there are many ecological nesting sites, and the drainage channels of the city of Trinidad flow toward the Ibare River.

Scientific Contribution

According to the professor, researcher, and volunteer rescuer, this scientific contribution will provide bibliographic references to study the turtle’s reproductive system, the number of eggs it lays, the incubation period, the hatching time, and the phenotypic characteristics of the animal—whether it is male or female, as temperature determines the sex.

“Look at this gift from God, allowing us to have this experience. The turtle laid eggs in captivity and successfully laid six eggs. We lost one—it was the first one she laid. Her instinct led her to try to dig at the moment she laid the first egg, and she most likely damaged it. That’s why today, from this little paradise called Beni, we will have technical and scientific data,” said an emotional Greminger Céspedes to ANA.

Transplantation

The transplantation of the toad-headed turtle’s eggs took place on March 22, 2025. “Great care must be taken when handling them. Look, we have finished the transplant. The eggs must be strategically positioned according to the cardinal points. Let’s not forget that temperature determines the sex, which is why they must be placed following the conditions where they naturally lay their eggs. Look, this is like a ravine, a strategic location because the nest needs to be warmed from sunrise until sunset.”

Greminger Céspedes states that he is fully committed to scientific research and that “this study will soon be global news.” Now, it is just a matter of waiting for the results.

“Unfortunately, there are not many studies on their reproduction, especially in the department of Beni. No research has been conducted on this species here. Don’t forget, I am a specialist in the reproduction of river turtles, particularly the Unifilis and Podocnemis expansa species,” he concluded.

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