Capybara

Capybaras are 65-kilogram semi-aquatic rodents native to South America, and the fact that they're a rodent seems to be the only thing about them anyone finds alarming. They are extraordinarily calm, non-aggressive, and seemingly magnetic to other species — birds, monkeys, turtles, caimans, and dogs are routinely found resting on or alongside wild capybaras. Being scared of a capybara is like being scared of a particularly large, very chill golden retriever.

Facts you didn't know

• 1

  Capybaras are the world's largest rodent, reaching up to 66 kg (145 lbs) and the size of a large dog — closer to a sheep than a rat.

• 2

  They are semi-aquatic and can hold their breath for up to five minutes, sleeping partially submerged to avoid land predators.

• 3

  Other animals — birds, monkeys, rabbits, turtles, even cats — routinely rest on top of capybaras in the wild. They are mobile lounging platforms for other species.

• 4

  Capybaras communicate through a complex vocabulary: purrs, barks, whistles, clicks, and a special rattling sound produced by a scent gland on their snout.

• 5

  Capybaras are more closely related to guinea pigs than rats, and their temperament, social structure, and ecological role have nothing in common with rats.

• 6

  They are highly social and visibly distressed when kept alone — wild groups typically number 10–20 individuals with strong social bonds.