The Texas horned 蜥蜴, an iconic reptile 种类in Oklahoma, has been experiencing population declines since the 1960s. Threats to this 种类include overcollection for the pet trade, particularly in the early- and mid-1900s, the spread of invasive red imported fire ants, loss of their primary food source, harvester ants, and habitat loss. 自2003年以来，科学家一直在俄克拉荷马州俄克拉荷马州的廷克空军基地研究这些蜥蜴的特殊种群。 阅读更多