Too Frail To Retire? Humans Ponder The Fate Of Research Chimps
Lab chimps used in medical studies are being retired to a forested sanctuary. But scientists and workers who care for the animals say some older chimps aren't healthy enough to make the transition.
Đọc thêm tại NPR
at August 29, 2018 at 01:14AM
Health & Science
Thứ Tư, 29 tháng 8, 2018
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