They were once thought to be a type of pig. Their genus name, Hydrochoerus, is derived from the Greek words “hydro,” for ...

First a river ran blood red. Now Argentina's beloved giant rodent, the capybara, has been coated in Hulk-green slime as pollution turns the country's waterways traffic light colours. The capybara ...

Capybaras, Hydrochoerus hydrochaeris, prove rodents of unusual size aren’t just fiction. Native to South America, capybaras are the largest rodents in the world. They grow as long as 4.5 feet ...