@magsson
Pets like dogs and cats can remember their owner's scent for months to years, or even a lifetime, especially with strong emotional bonds. Studies and reunions show dogs recognizing owners after separations of 5+ years primarily through scent.Source: https://www.caninebible.com/how-long-do-dogs-remember-a-scent/
Additional info: https://pawsafe.com/blogs/dog-behavior/do-dogs-remember-people