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Territorial behavior of hamstersFeatured science projectScience project video

Conclusion

The hypothesis that the hamsters placed in the same cage will fight and bite each other has been proven to be true. Providing the hamsters with a larger cage and 2 sets of resources helped to reduce the fighting between the pair of hamsters by allowing them to separate their territory within the same cage.

Hamsters are normally solitary animals and prefer to live on their own. If another hamster is placed inside that same cage, they will normally fight to their deaths. Some species of hamsters like the dwarf hamster are more tolerant and can get along with others of the same species. Placing two hamsters in the same cage is considered animal cruelty and should be avoided.
 

Also consider

The science fair project may be repeated to test if other rodents, such as mice, exhibit the same territorial behavior.

The experiment can also be repeated to compare the behavior of young hamsters, older hamsters and hamsters of different gender.
 

References

Territory (animal) - http://en.wikipedia.org/wiki/Territory_(animal)

Hamster - http://en.wikipedia.org/wiki/Hamster

Hamster’s health and happiness - http://hamsterama.tripod.com/healthandhappiness.html
 

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Complexity level:
3
Project cost ($):
50
Time required:
1 day for preparation, 1 day for experiment
Material availability:
Easily found. You can purchase hamsters at a nearby pet store.
Safety concerns:

Wear gloves when handling the hamsters to avoid getting bitten.