Hedgehog hibernation is a critical period when underweight individuals are at high risk of death, requiring understanding and sometimes intervention from householders.
Underweight hedgehogs attempting hibernation experience a prolonged death from starvation as fat reserves are exhausted before spring arrives. Individual animals experience significant suffering over days or weeks before dying. Householders who recognise small late-season hedgehogs and either provide supplementary food or contact a rescue centre can directly prevent this suffering. Understanding hedgehog biology enables practical welfare intervention that has tangible individual-level benefit.