[SUMMARY]: Dr. Christina Aiello, a bighorn sheep biologist, joins the Desert Protection podcast to discuss the threats facing desert bighorn sheep in the Mojave Desert. She highlights the similarities between the threats faced by bighorn sheep and desert tortoises, including habitat loss, fragmentation, and the impacts of climate change. Dr. Aiello emphasizes the importance of maintaining genetic diversity and connectivity between populations to ensure the long-term survival of the species. She also discusses the potential impacts of the proposed high-speed rail project on bighorn sheep mo...