Difference Between Similar Terms and Objects

Difference Between Guinea Pig and Hamster

The animal kingdom has a lot of species that may look like the exact replica of the other. That is the case for the guinea pig and the hamster. They look like each other at first glance, but studying them further will greatly help in distinguishing their broad list of differences. But first, let us get to know them individually.


Difference Between Guinea Pig and Hamster

What is a Guinea Pig?

The guinea pig with the scientific name Cavia porcellus is a domesticated animal that is best known to be related to the cavies or the South American rodents from the Caviidae family. Guinea pigs have plump bodies with extremely short legs; they’re also known to be rodents without a tail. Their measurement is six to ten inches long with one to two pounds in general.

Difference Between Guinea Pig and Hamster-1

What is a Hamster?

The hamster with the scientific name Cricetus cricetus from the Cricetidae family is a short-tailed rodent of Europe and Asia. Most people are highly familiar with the golden hamster (Mesocricetus auratus) because it looks quite attractive as a pet. Cereals are their main food alongside fruits, roots and leaves which they carry back to their nests in large cheek pouches. One of their characteristics is also being nocturnal.


What are the similarities of Guinea Pigs and Hamsters?

  • Order

The guinea pig and hamster both come from the order of Rodentia. They are both rodents from the same order but from different family.

  • Dental

The guinea pig and hamster both have the characteristic of masticating teeth that are piercingly sharp and always developing.

  • Nocturne

The guinea pig that belongs to the Caviidae family and the common hamster are both nocturnal which means they are especially active during the night. 


What are the differences between Guinea Pigs and Hamsters?

  • Size

Despite their chubby appearance, guinea pigs are more advantaged compared to the hamsters when it comes to size. The length measurement of guinea pigs is usually between 8 to 12 inches in contrast to the 5 to 6 inch approximate length of the hamsters. That is one of the main reasons why guinea pigs are more costly than hamsters because they need bigger space for their hefty bodies.

  • Classification

Guinea pigs are herbivorous which means they only have plants for food intake. However, they are also known to be coprophages who feed on caecotropes that are actually fecal matters that are rich in vitamins and nutrients. On the other hand, hamsters are omnivorous which means they eat both meat and vegetables.

  • Number of Species

When it comes to species, hamsters outnumber the guinea pigs, as the latter only have one species while the hamsters have 25 in all which includes the famous Golden hamster.

  • Offspring

The offspring produced by hamsters are called pups and they are typically born without sight and hair. The average number of pups given birth by the female hamsters is 6 to 12, though sometimes they have up to 20. They nurse them for about three weeks after birth. The guinea pigs, on the other hand, give birth to an average of 2 to 4 piglets, although there are times that they can have up to eight young and fully developed young ones. 

  • Life Expectancy

Guinea pigs live for about 5 to 7 years which is quite longer compared to the hamsters’ life span which lasts for about 2 to 3 years only.

  • Interaction

Guinea pigs have more interactions with their fellow guinea pigs and even to other animals. They are usually in need of constant connection with humans. They tend to be more playful and good-natured around groups making them easier to put up with. In contrast to that, hamsters can be very aggressive with others, especially when it comes to food.

  • Sound Produced

Guinea pigs have a penchant of being noisy because of their loud shrieks, screams and other squeaky sounds. Hamsters, on the other hand, can also be noisy especially at night since they are nocturnal rodents but their sound is not as loud as that of the guinea pigs.


To sum it all up, guinea pigs and hamsters are completely different being despite their almost identical physical characteristics. They may come from the same order of Rodentia but they deviate from each other when it comes to size, classification, number of species, offspring, life expectancy, interaction and sound produced. Read the table below for the summary of their major differences.


Differences Guinea Pig Hamster
Size Bigger: usually between 8 to 12 inches in length Smaller: usually between 5 to 6 inches in length
Classification Herbivorous cophrages Omnivorous
Number of Species One species only 25 species in all
Offspring Fully developed piglets
Average: 2-4 per birth
Blind and hairless pups
Average: 6-12 per birth
Life Expectancy 5 to 7 years 2-3 years
Interaction Sociable with others Aggressive and competitive
Sound Produced Loud noises Noisy but not too loud

Sharing is caring!

Search DifferenceBetween.net :

Email This Post Email This Post : If you like this article or our site. Please spread the word. Share it with your friends/family.


  1. This was a fantastic article outlining the major differences between the two species. Thanks also for going the extra mile and providing a handy summarized chart at the end to view the differences at a glance. Well done!

Leave a Response

Please note: comment moderation is enabled and may delay your comment. There is no need to resubmit your comment.

References :

[0]“Owning a Hamster vs. a Guinea Pig.” Animals.mom.me. Whalerock Digital Media, LLC. 2017. Web.

[1]“Guinea Pig and Hamsters.” The New Websters International Encyclopedia. Florida: Trident Press International. 1999. Print.

[2]"Image Credit: https://commons.wikimedia.org/wiki/File:Two_adult_Guinea_Pigs_(Cavia_porcellus).jpg"

[3]"Image Credit: https://pixabay.com/en/hamster-pet-animal-small-cute-fur-690108/"

Articles on DifferenceBetween.net are general information, and are not intended to substitute for professional advice. The information is "AS IS", "WITH ALL FAULTS". User assumes all risk of use, damage, or injury. You agree that we have no liability for any damages.

See more about : ,
Protected by Copyscape Plagiarism Finder