Guinea pigs are highly social rodents with specific nutritional and behavioral requirements that are frequently misunderstood, leading to preventable suffering in pet populations.
The gap between typical guinea pig husbandry and their actual welfare needs is substantial. Single housing causes chronic loneliness in an animal whose evolutionary history is deeply communal. Small cages — the typical pet store cage is dramatically undersized — prevent running and exploration. Incorrect diets lacking vitamin C cause painful scurvy that can progress over weeks before detection. Teeth problems from insufficient hay cause pain and difficulty eating. Guinea pigs mask illness — visible signs of disease often indicate advanced stages.