Lesser Capybara (Hydrochoerus isthmius) lives in tropical wetlands across Central and South America. It feeds on grass and aquatic plants.
Fascinating facts about the Lesser Capybara
- The lesser capybara marks the northernmost range of any living capybara, extending farther north than its relatives. Its current distribution reaches eastern Panama and the western fringes of Colombia and Venezuela, just west of the Andes. The species was first spotted in Panama's Pacific river valleys in 1912 before being recognised as distinct in the 1980s, confirming its unique northern foothold.
- Lesser capybaras mate throughout the year, but all courtship and copulation occur in water, reflecting their semi-aquatic lifestyle. When a female is in estrus she produces a nasal whistle that draws nearby males, prompting the pair to enter the water together. After fertilisation the female carries the embryos for about 108 days before delivering a litter of three to four pups, allowing continuous recruitment.
- During estrus a female lesser capybara emits a distinctive whistle through her nose, a sound that serves as the specific cue for males to initiate mating. This nasal call is heard while the animals are in their watery habitats, ensuring that both partners are already positioned for the water-bound breeding that defines the species. The whistle therefore triggers the year-round, water-only reproductive cycle of the capybara.
- An adult lesser capybara consumes between 2.7 and 3.6 kilograms of vegetation each day. Their diet is dominated by grasses and other aquatic plants that grow in the marshes, ponds and lagoons they inhabit, and when the dry season reduces these preferred foods, they supplement their intake with reeds, grains, melons and squash.
- Lesser capybaras will eventually ingest their own feces, a behaviour that introduces beneficial bacteria into their gut and aids the breakdown of the thick plant fibres that dominate their diet.
Sources
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At a glance
RangeCentral and South America
HabitatTropical wetlands
DietGrass and aquatic plants
About the Lesser Capybara
In the lush, vibrant wetlands of its native habitat, the lesser capybara glides effortlessly through the water, its webbed feet propelling it with a serene, almost ethereal quality, as if it is one with the very essence of its surroundings. As it moves, the sunlight dancing across the ripples of the water casts a mesmerizing pattern of light and shadow on its sleek, brown coat, imbuing this humble creature with an air of quiet majesty. With its remarkable ability to thrive in a wide range of aquatic environments, the lesser capybara has earned its place as a resilient and fascinating denizen of the tropical wilderness.
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