According to the UC Davis Book of Dogs, small-breed dogs (such as small terriers) become geriatric at about 11 years; medium-breed dogs (such as larger spaniels) at 10 years; large-breed dogs (such as German Shepherd Dogs) at 8 years; and giant-breed dogs (such as Great Danes) at 7 years.
Enligt UC Davis Book of Dogs blir mindre hundar (som mindre terrier) geriatrisk vid omkring 11 års ålder, medelstora hundar (som större spaniel) vid 10 år, större hundar (som tysk schäferhund) vid 8 år och stora hundar (som grand danois) vid 7 år.