These tortoises were doing so poorly a veterinarian, Dr. Jarchow, was consulted. He reported all six specimens were suffering from osteoporosis caused by a protein deficiency in their diet. Dr. Jarchow examined five specimens from the same mountains that shared their range with cattle. He reported these specimens were all healthy and well nourished.
The historical record proves conclusively that tortoise thrive when cattle are on the range with them and without cattle grazing they are always malnourished and unhealthy and their numbers plummet.
http://www.vinsuprynowicz.com/?p=80
Even more chilling is a book called 15 Minutes, a history of the H-Bomb and SAC.
Boo hoo, 99.9% of all species that ever existed on this planet are extinct. Life goes on.