The hair covering the capybaras is rare, and its skin can easily get sunburned by prolonged exposure to the sun. Fortunately, capybaras can dive and stay underwater for up to 5 minutes, often falling asleep in the water while keeping their noses on the water surface. Diving along rivers, mangrove forests, and swamps helps them to stay cool, and safe from sunburn. ¹⁾.

Capybaras are very vocal animals, and the sound they make carry a meaning. Sounds made by capybaras include barking, whistling, purring, grunting, squealing, cackling, and whining. ²⁾.