Gender Medicine in Europe. Females Are Mosaics: X Inactivation and Sex Differences in Disease. The word mosaic is a form of work of art in which pictures are produced joining together minutes pieces of glass, stones and other materials of different colors.
Most GSDs will live to be between 10-13 years of age while 11-12 years is generally considered the average lifespan. A German Shepherd Dog becomes middle-aged between 6 to 7 years of age, and a GSD is generally considered geriatric at around 10. More senior GSD info.
Puppies are weaned from their mothers by about 6 weeks of age, but the period following weaning is very important in terms of learning âpackâ behavior. Although 8 weeks is old enough and a common age for leaving the litter, 10 weeks is probably optimum for a German Shepherd.