University of Bath researchers found that mammals with larger brains and more immune-related genes live longer.

New research links brain size and immune gene expansion to mammal longevity, explaining why cats typically outlive dogs.

Why do cats generally live longer than dogs? New research suggests that longer lifespans of mammals like cats could be linked to their bigger brains and more complex immune systems.

Why do cats generally live longer than dogs ... found that longer-lived species had a greater number of genes belonging to ...