He XiAlphabetical Checklist 2 titlesDa'erwen Xianjing ["The Darwin Trap"] (Chengdu: Sichuan Kexue Jishu Chubanshe, 2011) Rensheng Bu Xiangxian ["No Sign of Life"] (Chengdu: Sichuan Kexue Jishu Chubanshe, 2011)