Capybara facts: largest rodent, 5-minute dives, 100-animal groups

Capybara facts begin with a striking animal: the capybara is the largest living rodent. It is native to all countries in South America except Chile, and its life is built around water, grass, and company.

What makes a capybara a capybara?

The capybara’s common name comes from Tupi and means “one who eats slender leaves” or “grass-eater.” Its genus name, Hydrochoerus, comes from Greek words for “water” and “pig, hog.” Those names fit an animal that spends so much of its life near water.

Capybaras can hold their breath underwater for up to five minutes at a time. That skill goes along with a body adapted to wet places, but their story is not only about water. It is also about living together in groups.

How do capybaras live in groups?

Capybaras are highly social and usually live in groups of 10–20 individuals. Groups can be as large as 100 individuals. That range makes the species easy to picture in a herd-like setting, with many animals sharing the same space.

They also communicate in a mix of sounds: barks, chirps, whistles, huffs, and purrs. Those vocalizations give the social life a clear voice, especially in a species that spends so much time close to others.

What do capybaras eat and why do they eat feces?

Capybaras eat their own feces to help digest cellulose and extract more protein and vitamins from their food. That habit is part of how they get more from what they eat, and it is one of the most unusual details in capybara facts.

The species is not considered a threatened species. Even so, the wild and captive lives of capybaras can look very different. Their maximum lifespan is 8 to 10 years, while in the wild they usually do not live longer than four years because of predation.

Why are capybaras so popular in Japan?

In Japan, hot spring baths for capybaras have become popular at zoos, and video clips of the bathing capybaras have millions of views. That makes the animal easy to recognize far beyond its native range, especially when people see it relaxing in warm water.

Capybaras may live for 12 years in captivity, more than double their wild lifespan. Between their social groups, water habits, and unusual eating behavior, they leave a lot to remember — from South America to zoo baths in Japan.

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