A potential sperm bank for cheetahs could be a game-changer for the world's fastest land animal, according to American zoologist Laurie Marker. For 35 years, Marker has been collecting and storing cheetah sperm in Namibia, hoping it will never be needed. But with cheetahs facing a dire threat of extinction, Marker worries that artificial reproduction might be the only way to save them. The sperm bank, which Marker calls a 'frozen zoo', is a safeguard against the alarming decline of cheetahs in the wild over the last 50 years. With fewer than 7,000 cheetahs left, similar to the critically endangered black rhino, their numbers are critically low. The primary causes of their endangerment include habitat loss, human-wildlife conflict, and the illegal animal trade. This shrinking gene pool, coupled with abnormally low sperm counts (70-80% of cheetah sperm is abnormal), makes their future uncertain. Marker emphasizes the importance of genetic diversity, suggesting that a sperm bank could be a crucial resource if needed. This isn't an isolated case; Marker highlights the success of sperm storage in other species, such as the northern white rhino, which is now functionally extinct due to a lack of genetic diversity. The northern white rhinos' only hope lies in artificial reproduction using sperm collected and frozen years ago. Despite challenges, Marker's efforts in Namibia are a testament to the potential of sperm banking as a last resort for endangered species.
