Specially trained dogs make stunning discovery in US nature area: 'Just exploded'

Specially trained dogs make stunning discovery in US nature area: 'Just exploded'

Scientists have made an exciting breakthrough for one of North America's rarest mammals.  After detection dogs located 85 scat samples in California's Lassen region, researchers found promising evidence that the critically endangered Sierra Nevada red fox is still holding on.  According to the U.S. Fish & Wildlife Service, estimates suggest that only 18 to 39 foxes remain in the wild — so every confirmed detection is significant.  Detection dogs…