Capybara Zena relaxes after giving birth to triplets at Chessington World of Adventures Resort in Surrey.
The sex of her new arrivals is so far unknown and they have not yet been named.
Keeper Jenny Fisher said: “Capybara are naturally very social animals, and the energetic triplets have spent the past few days getting to know each other – and keeping their mother very busy indeed.”
The capybara is the largest member of the rodent species and a close relative to chinchillas and guinea pigs.
Native to South America, it typically inhabits savannas and dense forests, and lives near bodies of water.
A semiaquatic mammal, the capybara is an excellent swimmer and can remain completely submerged for up to five minutes.
