ocr: Drastic measures In a failed effort, veterinarian Dougias Armstrong introduces the semen of a Sumatran tiger into a female at Omaha's Henry Doorly Zoo. The operation is: seldom: success ful with tigers, but zoOs continue to try, hoping to use artificial insemination and sperm banks to ensure genetic diversity among tigers in captivity. and, perhaps someday, in the wild. population is likely to fare. And history bears existing tiger, So in a healthy community them out. Tiger hunting and loss of habitat there's always a doomed surplus." were once blamed for the loss of the Bali, Cas- As long as ...
