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Why do my male hamsters look like they're mating? Is it aggression?

Updated On September 23rd, 2025

Pet's info: Small Animal | Hamster | Male | unneutered | 2 months and 6 days old

My hamster gave birth to 3 hamsters from which 1 of them is a female and the other two are male For now I have separated the males and the females and now the kids are 2 months old The male hamsters that live together and Nico and Alvin And I saw them mating today which is very strange! After that I also clicked their pictures and I have attached it with this mail as well there is a female, miko in a different cage and her cage is kept nearby and the female is in heat, can that be the reaso

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Answered By Todd Cecil

Veterinarian

Published on January 5th, 2020

Thanks for reaching out. Both photos appear to be males. Aggression can appears as breeding. Males often do not get along, so should be separated to prevent fightings and wounds. Hamsters are predominately solitary animals and can be very territoriality. Good luck.

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