World Dog Day observed as research links breed size to aging speed

October 10 marks World Dog Day, a day dedicated to celebrating the bond between humans and their canine companions. In Germany, where approximately 10.5 million dogs reside, the day serves to raise awareness regarding responsible pet ownership and the specific needs of dogs.

In related scientific developments, researchers utilizing data from the Dog Aging Project have identified why large dog breeds tend to age faster and have shorter lifespans than smaller breeds. As reported in the journal Nature, the study reveals that aging processes occur more rapidly at a molecular level due to changes in the genome.

Scientists developed a specialized DNA clock to measure biological age through blood samples. The findings indicate that large breeds and males experience accelerated aging, often starting early in life, which correlates with a higher risk of mortality.