27/08/2024
🚨 🚨 HUGE NEWS‼️ 🚨 🚨
Memphis Zoo Scientists Achieve World-First in Reptile Conservation
Memphis Zoo scientists have made a groundbreaking achievement in the field of conservation with the first reptile offspring to be successfully produced using frozen semen and artificial insemination. This scientific milestone marks a significant advancement in the zoo’s ongoing efforts to recover the endangered Louisiana pinesnake and underscores the critical role of science in conservation.
The Memphis Zoo’s Science team, led by Dr. Steve Reichling, Beth Roberts, and previous post-doctoral scientist Dr. Mark Sandfoss, has accomplished a world-first by using cryopreserved (frozen) semen to successfully fertilize and produce viable offspring in a Louisiana pinesnake. This success was achieved within the framework of the zoo's Louisiana pinesnake species recovery program, emphasizing the zoo's commitment to species conservation through innovative scientific methods.
A Milestone in Reptile Conservation-
Historically, the concept of the "Frozen Zoo" has primarily focused on mammals, birds, and recently amphibians with reptiles often overlooked. However, this successful production of offspring using artificial insemination and frozen-thawed semen in an endangered snake species demonstrates the potential use of biobanking and assisted reproductive technologies (ART) in reptile conservation worldwide.
“The emergence of these 3 hatchlings summed up 5 years of reproductive research and 30 years of Memphis Zoo's use of cutting-edge science and dedication to save the Louisiana pinesnake from extinction. This achievement brought us one step closer to routinely integrating assisted reproductive technology into reptile conservation to preserve genetics and save species,” said Beth Roberts, Senior Reproductive Scientist at Memphis Zoo.
Pioneering Science for Endangered Species-
This project is a significant proof of concept that semen cryopreservation and reproductive technologies can be applied effectively in reptiles, a taxonomic group often neglected in biobanking efforts. The zoo’s team meticulously collected, froze, and later thawed semen, which was then used to successfully inseminate a female Louisiana pinesnake.
Genetic testing by Dr. Tonia Schwartz and graduate student Alexis Lindsey at Auburn University confirmed that the offspring were indeed sired by the donor male, setting a precedent for future conservation efforts in reptiles. “Auburn University is dedicated to impactful science,” said Dr. Tonia Schwartz, Associate Professor in the Department of Biological Sciences. “The Schwartz Lab at Auburn University is passionate about conservation and using genetics to understand how animal populations are impacted by threats in their environment. We are proud to partner with Memphis Zoo on this project to use our genetic expertise to validate the successful fertilization using cryopreserved s***m. We see this success as a huge step forward to enable future efforts to improve the genetic health of this species and other threatened reptile species.”
“Memphis Zoo is setting an example for the global community,” said Dr. Mark Sandfoss, who spearheaded the research. “We’ve shown that it’s possible to use cryopreserved genetic material to aid in the recovery of an endangered species, paving the way for similar efforts with other reptile species in the future.”
What This Means for the Future of Conservation-
This achievement comes at a crucial time for the Louisiana pinesnake, which is one of the rarest snakes in North America. With habitat loss continuing to threaten their survival, the ability to utilize cryopreserved semen offers new hope for maintaining genetic diversity in the species and ensuring its long-term survival. Memphis Zoo plans to continue its pioneering work in reptile conservation, leveraging this success to build on its research and collaborate with other institutions worldwide. “Today, the future of endangered reptiles got a little brighter.” – Dr. Steve Reichling
