For this capybara, called Lochley, her unexpected birth of four babies, left many visitors surprised, according Chester Zoo's James Andrewes.
He explained: "Lochley gave birth out in the sunshine — her first two pups arriving before the zoo had opened with her second two born a little later, in front of a handful of rather astonished visitors."
Although they are not classified as endangered, they are a highly threatened species due to the decline of their natural habitat.
For the zoo, this might be the first bunch of pups, but it's definitely not the last because another capybara is heavily pregnant.