Freshwater and terrestrial turtles are disproportionately killed by road traffic as they cross roads during migration to nesting sites, causing population-level welfare harm.
Road turtle mortality represents a welfare harm that is both individually severe — turtles are pain-sensitive, long-lived animals — and ecologically significant, as adult females are irreplaceable for population persistence. The tragedy is that most road turtle deaths are easily preventable at the individual level: a motorist who stops to help a turtle cross takes two minutes but may save an animal that would otherwise live for decades and contribute hundreds of offspring to her population. At the infrastructure level, turtle underpasses in known crossing hotspots are cost-effective conservation investments with direct welfare benefits. The combination of individual helping behaviour and structural mitigation represents one of the most straightforward wildlife welfare interventions available.