Social insects with vertical microbiome transfer reverse aging—queens show opposite microbial succession to workers, maintaining Lactobacillus while workers accumulate Proteobacteria

Honey bee queens live 100x longer than workers with identical genomes. The difference: queens show reversed age-associated microbiome succession—increasing beneficial bacteria with age, while workers accumulate inflammatory Proteobacteria. Vertical transmission enables transgenerational immune priming that suppresses aging.