If in the wild... the capybara will eat grasses, aquatic plants, tree bark, grains, squash, melon, as well as other fruits.
If at the zoo... the capybara will eat rodent pellets with vitamins and minerals, along with fruits, vegetables, and hay.
Young capybara are the prey for many animals. Some of the predators include vultures, feral dogs, caimans, and foxes. The young are not the only ones susceptible to predators. Adult capybaras are the prey of jaguars, caimans, and anacondas.