Wild Rat Welfare and Pest Control

Wild rats are among the most frequently killed vertebrates in pest control, yet receive little welfare consideration despite evidence of sentience and social complexity.

Key Facts

Rats have been shown to demonstrate empathy behaviours including releasing trapped cage-mates
Rats engage in play behaviour associated with positive affective states
Common pest control methods including glue boards cause prolonged suffering
Second-generation rodenticides cause internal bleeding and slow death over days
Exclusion and proofing methods address pest problems without lethal control

Welfare Considerations

Wild rat welfare sits at an uncomfortable intersection of pest control and animal welfare science. Laboratory rat research has revealed that rats are cognitively sophisticated, socially complex animals capable of empathy and positive emotional states. Yet wild rats are killed in vast numbers using methods — glue boards, second-generation rodenticides — that cause prolonged, severe suffering. The welfare case for humane pest control methods is strengthened by this cognitive evidence. Exclusion, proofing, and snap traps cause less suffering than glue traps or slow-acting poisons. The categorisation of rats as pests does not diminish their capacity for suffering.

What You Can Do

Avoid glue traps — they cause prolonged distress and suffering
Use snap traps as a more humane lethal option where control is necessary
Prioritise exclusion and building proofing over lethal control
Avoid second-generation rodenticides due to risks to rats, scavengers, and owls