What Is a Group of Guinea Pigs Called? It's Bigger Than You'd Expect

Despite the commonly accepted collective noun, we're not sure how effectively you can herd guinea pigs. trabantos / Shutterstock

If you have ever wondered, "What is a group of guinea pigs called," you are not alone. These chatty little cavies make so many sounds, it feels like they should have a team name.

The short answer: A group of guinea pigs is called a herd.

That collective noun might surprise you. After all, they are small pets, not cattle roaming the plains. But language has its own history, and this idea goes back to how these animals live in the wild.

A Herd of Guinea Pigs

You can also say "group of guinea pigs" in casual speech, but "herd" is a commonly used collective noun.

In the wild regions of South America, wild guinea pigs live in social units that function very much like a herd. Guinea pigs are highly social rodents that depend on group structure for safety and support. Living together helps them observe danger, share food, and learn social cues.

So while they are not pigs at all, the herd label stuck. Language can be stubborn like that.

Why 'Herd' Makes Biological Sense

Wild guinea pigs in South America are often found in social groups. They live in small herds made up of multiple females (called sows) and one male (often called a boar). Baby guinea pigs are known as pups, though some people call them piglets.

In a natural herd, one dominant male may control breeding access to several females. The young guinea pigs develop quickly after birth. Unlike many rodents, pups are born fully furred and able to run within hours.

These social structures help guinea pigs survive predators and harsh conditions. A herd acts like an early warning system; one squeal can alert the whole group.

Herd behavior shows how animals use group living to increase survival.

From Wild Cavies to Modern Pets

Guinea pigs, also called cavies, were domesticated thousands of years ago in South America. Indigenous people bred them for food long before they became popular pets in Europe and North America. Historical records describe their long relationship with humans and domestication.

Today, many guinea pigs live as pets. Yet their herd instinct remains important. Experts recommend keeping at least two guinea pigs together so they can cuddle, play, and communicate through a range of sounds.

When thinking about cost and efforts, remember that caring for a duo of pets means doubling food, bedding, and veterinary work. Still, many people find the fun and happy energy of a bonded pair worth the extra support.

We created this article in conjunction with AI technology, then made sure it was fact-checked and edited by a HowStuffWorks editor.