The capybara (Hydrochoerus hydrochaeris), also known as capivara in Portuguese, and capibara, chigüire in Venezuela, Colombia, and Ecuador ronsoco in Peru, chigüiro, and carpincho in Spanish, is the largest living rodent in the world. Its closest relatives are agouti, chinchillas, coyphillas, and guinea pigs.
Capybaras have heavy, barrel-shaped bodies and short heads with reddish-brown fur on the upper part of their body that turns yellowish-brown underneath. Adult capybaras grow to 107 to 134 cm (3.51 to 4.40 ft) in length, stand 50 to 64 cm (20 to 25 in) tall at the withers and typically weigh 35 to 66 kg (77 to 150 lb), with an average in the Venezuelan llanos of 48.9 kg (108 lb). The top recorded weight are 105.4 kg (232 lbs) for what was likely a zoo-kept specimen[original research?], 91 kg (200 lb) for a wild female from Brazil and 73.5 kg (162 lb) for a wild male from Uruguay. Capybaras have slightly webbed feet, no tail and 20 teeth. Their back legs are slightly longer than their front legs and their muzzles are blunt with eyes, nostrils, and ears on top of their head. Females are slightly heavier than males.