Djungarian Hamsters Are Unusually Involved Fathers

image via New Scientist

June 13, 2025, 10:00 AM

• •Djungarian hamster dads are unusually involved in raising their young, including acting as midwives, keeping pups warm, and feeding them.
• •This behavior is likely an adaptation to the harsh, cold environment where they live, as pups struggle to survive without their fathers' care.
• •The study found that in the lab, pups were more likely to survive when dads are present, especially in warmer temperatures.
• •Other factors like confidence in paternity and female mate selection also play a role in active fatherhood in various species.

In the arid semi-deserts of Russia, China, and Mongolia, Djungarian hamster dads exhibit exceptional paternal care, defying the norm in most mammals. These dads actively participate in pup care, including acting as midwives and keeping pups warm. This behavior is likely an adaptation to the harsh environment, where pup survival is significantly higher with paternal involvement. The study found that pups in warmer environments were more likely to survive with their dads. Other factors like confidence in paternity and female mate selection also play a role in active fatherhood in various species, exemplifying how evolution can shape diverse parental strategies.

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