Breed-specific behaviour tendencies have a substantial genetic basis that influences welfare — for better and worse — through selection for working behaviours and physical conformation.
Breed behaviour genetics matters for welfare because mismatches between breed tendencies and owner lifestyle cause chronic behavioural frustration and welfare compromise. Border Collies in apartments without work; Huskies in hot climates; high-drive terriers without appropriate outlets — these mismatches produce problem behaviours that reflect unmet welfare needs rather than training failures. Understanding the genetic basis of breed behaviour enables better matching and more realistic owner expectations, reducing welfare harms from lifestyle mismatch.