Guinea pig

This guide was AI-drafted from Wikipedia (CC BY-SA) and reviewed before publishing.

Overview

Guinea pigs (Cavia porcellus) are rodents, also known as cavies or domestic cavies. They are not native to Guinea and are not related to pigs - the origin of their name is actually a bit of a mystery! They originally come from the Andean region of South America, where they were first domesticated as far back as 5000 BC.

In the early 1500s, Spanish, Dutch, and English traders brought guinea pigs to Europe, where they quickly became popular as exotic pets - even Queen Elizabeth I is said to have kept one. They have remained a much-loved choice of pet ever since, thanks to their gentle and friendly nature.

Adult guinea pigs typically weigh between 700 g and 1,200 g and measure around 20 to 25 cm in length. Pet breeds live an average of four to five years, though some can live as long as eight years.

Temperament & behaviour

Guinea pigs are naturally social animals. In the wild they live in small groups called herds, made up of several females, a male, and their young. Because of this, they really do thrive in the company of their own kind, and studies highlight the importance of social housing for their well-being.

They are generally docile and respond well to gentle handling and feeding, which is a big part of why they make such wonderful pets. That said, they can be skittish around sudden noises or perceived danger, and their instinct is to freeze or flee - so a calm, quiet environment helps them feel safe.

Guinea pigs are crepuscular, meaning they tend to be most active around dawn and dusk. They are also surprisingly good learners - they can learn complex paths to food and remember a learned route for months.

Care basics

Guinea pigs need constant access to hay, which is central to their health and well-being. Their front teeth grow continuously throughout their lives, so regular chewing - on hay, wood, and other safe materials - is essential to keep those teeth worn down to a healthy length.

They benefit greatly from environmental enrichment, such as hides and structures to explore, as well as adequate space to move around. A stimulating, comfortable environment helps keep stress levels low and supports their overall happiness.

If you are not planning to breed your guinea pigs, veterinary guidance recommends keeping males and females housed separately. It is also worth noting that sexing young guinea pigs correctly requires a trained eye, so seek expert advice if you are unsure.

Health awareness

Guinea pigs' front teeth grow continuously, so it is worth keeping an eye on them to make sure they are wearing down evenly through regular chewing. Any changes in eating habits could be worth a chat with your vet.

Because guinea pigs are prey animals by nature, they can be good at hiding signs that something is not quite right. Getting to know your guinea pig's normal behaviour, appetite, and activity levels makes it much easier to spot when something seems off.

Stress can affect guinea pig well-being, so watch for signs of unusual behaviour, such as reduced movement or changes in how social they seem. Providing hides, space, and companionship goes a long way towards keeping them settled and content.

This is general awareness only, not veterinary advice. Always consult a vet about your pet's health.

Fun facts

Despite their name, guinea pigs are neither from Guinea nor related to pigs - one theory is that early traders brought them through Guinea, leading people to assume that was their home. Another suggests the word guinea may be a twist on Guiana, a region of South America.

Many languages around the world link guinea pigs to pigs too. In German they are called Meerschweinchen, meaning little sea pig, because they arrived from overseas. In French they are cochon d'Inde (Indian pig), and in Chinese they are known as pig mouse.

The word guinea pig has even entered everyday English as a phrase - because these animals were used so frequently in scientific research during the 19th and 20th centuries, calling someone a guinea pig became a common way to describe a human test subject. According to Guinness World Records, the longest-lived guinea pig reached an impressive 14 years, 10 months, and 2 weeks old.

Source

Adapted from Wikipedia (CC BY-SA 4.0): https://en.wikipedia.org/wiki/Guinea_pig