Scientists in Texas are racing to save the endangered ocelot, which has dwindled to fewer than 100 individuals in two small breeding populations in South Texas, by attempting fertility treatments, including artificial insemination and in vitro fertilization. Despite their efforts since 2021, researchers have been unsuccessful in producing viable pregnancies due to challenges like poor sperm quality from inbreeding and environmental stresses, but they continue their work with plans to build a specialized facility in Kingsville by the year’s end.