Naked Mole Rat

scientific name

Heterocehalus glaber

size/weight/height

Head/Body Length: 3.5-4.7 in • Weight: 1-2.1 oz

adaptations/coloration

cylindrical bodies • short limbs • loose skin helps animal turn around in confined space • no external ears • Eyes: small (may be blind) • Metabolism: low = low food requirement • Teeth: chisel-like incisors; touch-sensitive hairs over body (only hair) • Smell/Hearing: developed

behavior

Caste System: organized in castes according to task; castes distinguished by appearance • Home: underground; live in colonies; similar to social insects • Movement: move backward easily • Personality: highly social • Tunnels: dig extensive tunnel system; constant temp (avoid outside extremes)

reproduction/lifespan

Lifespan: 10+ yrs in captivity • Breeding: only 1 pair breeds; non-breeders not sterile; breeding female seems to suppress breeding in others (pheromones?); breed yr.-round in captivity • Birth Interval: up to 4 litters/yr. • Gestation: 70-80 days • Litter: avg. ~12 (record = 27 in captivity) • Parenting: young cared for by entire colony • Sexual Maturity: 1+ yrs

diet