It’s a tough time to be a spectacled bear at the zoo in Leipzig, Germany — at least, it’s a tough time to be a female spectacled bear.  Veterinarians are struggling to determine why the zoo’s female spectacled bears have suddenly lost nearly all their fur, which is typically shaggy for both females and males of their species.  There has been speculation that a genetic defect could be responsible, but beyond the obvious hair loss and its accompanying itchiness, no other symptoms have been noted in the affected bears.