Degus are highly intelligent, social rodents that thrive in complex social groups but often suffer when kept as solitary pets. Their welfare needs challenge many common husbandry assumptions.
Degus frequently suffer welfare problems in captivity related to social isolation, inappropriate diet, and insufficient environmental complexity. Solitary housing causes severe stress - studies show isolated degus develop behavioral abnormalities and elevated cortisol levels comparable to depression models. Sugary treats cause diabetes leading to cataracts, weight gain and shortened lifespan. Environments lacking complexity - tunnels, digging substrate, climbing structures - cause stereotypic behaviors like bar chewing and repetitive running. Dental disease from insufficient hay causes chronic oral pain. The combination of these factors means many pet degus live significantly shortened, compromised lives despite their potential 6-8 year lifespan.