IVF Gives Rhinos a Chance for a Bright Future. World's first IVF rhino pregnancy could save near-extinct animals
The BioRescue research team are racing against time to save the northern white rhino from extinction
(Ref: www.abc.net.au)
In a groundbreaking medical achievement, scientists have reached a pivotal moment in the conservation efforts for Africa's northern white rhinos, a subspecies teetering on the brink of extinction with only two remaining individuals. The announcement of the world's first IVF rhino pregnancy through embryo transfer has ignited hope for the revival of these magnificent creatures. This article delves into the details of this groundbreaking breakthrough, its challenges, and the far-reaching implications for rhino conservation.
The Hopeful Beginning:
A new chapter in rhino conservation began with a medical breakthrough involving embryo transfer, offering a glimmer of hope for Africa's critically endangered northern white rhinos. The survival of this subspecies, with just two individuals remaining, hangs in the balance.
(C)JAN ZWILLING: The embryo transfer was carried out using a surrogate southern white rhino mother (Ref: www.bbc.com)
Lab-Assisted Pregnancy:
Researchers at Ol Pejeta Conservancy in Kenya successfully accomplished the first-ever rhino pregnancy using in vitro fertilization (IVF). The procedure involved implanting a southern white rhino embryo into a surrogate mother named Curra. This significant milestone serves as the essential "proof of concept" for the broader application of this technique to save endangered rhino populations.
Curra's Tragic Journey:
While Curra, the surrogate mother, tragically succumbed to a bacterial infection a few months into her 16-month pregnancy, her role in the successful embryo transfer opens new possibilities for applying the technique to the critically endangered northern white rhino.
(C)Ben Curtis/AP: Female northern white rhinos Fatu, left, and Najin, right, the last two northern white rhinos on the planet, graze in their enclosure at Ol Pejeta Conservancy in Kenya on Aug. 23, 2019. Both are incapable of natural reproduction (Ref: edition.cnn.com)
Expanding the Impact:
BioRescue, the international group of scientists leading this research, anticipates implanting a northern white rhino embryo into a southern white rhino surrogate mother in the near future. This approach, deemed feasible due to the genetic similarities between the two subspecies, holds promise not only for northern white rhinos but also for other critically endangered rhino species, such as the Asian Javan rhinoceros and the Sumatran rhinoceros.
The male embryo grew to 6.4 centimeters before the surrogate mother tragically died from an unrelated bacterial infection (Ref: www.abc.net.au)
Urgency for the Northern White Rhino:
The northern white rhino faces a dire situation with no males left and the remaining two elderly females residing under armed guard at Ol Pejeta Conservancy. The drastic decline in their numbers can be attributed to the international demand for their horns, a sought-after substance for unproven medicinal applications and carvings.
Global Rhino Conservation Challenge:
The challenges faced by rhinoceros populations extend beyond the northern white rhino. Worldwide, there are five species of rhinoceros, and many are in jeopardy. With only about 23,000 rhinos across all of Africa, concerted efforts are needed to safeguard these iconic creatures.
BioRescue's Ongoing Efforts:
The BioRescue project has encountered setbacks, but the team remains dedicated to its mission. Despite having frozen embryos, the urgency persists, as the researchers aim to use southern white rhinos as surrogate mothers for northern white rhino embryos.
The Next Phase:
BioRescue's ambitious plan involves implanting one of their limited number of northern white rhino embryos into a southern white rhino surrogate mother within the next six months. Careful selection, protective measures against bacterial infections, and the identification of the ideal mating time are crucial elements of this next phase.
The Cost of Conservation:
The northern white rhino revitalization venture has incurred substantial costs, supported by public and private donors, including the German Federal Ministry of Education and Research. Partnerships with institutions worldwide emphasize the global commitment to this critical conservation initiative.
Alternative Approaches and Future Prospects:
Researchers explore alternative approaches, including stem cell techniques, to broaden the northern white rhino gene pool. Crossbreeding considerations raise questions about genetic purity, physical differences, and potential ecological impacts. The ongoing efforts strive to strike a balance between genetic diversity and maintaining the unique characteristics of the northern white rhino.
(C) JAN ZWILLING: The team is also looking at stem cell research to boost the northern white rhino population (Ref: www.bbc.com)
Conclusion:
The journey of the world's first IVF rhino pregnancy represents a beacon of hope in the realm of conservation. As BioRescue continues its tireless efforts, the hope for the northern white rhino's revival echoes worldwide. This article provides an in-depth exploration of the challenges, successes, and ongoing battle to secure a future for rhinos on the verge of extinction.
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