* Vast and diverse country: Brazil is enormous and has a wide variety of habitats, from rainforests to grasslands to urban areas, each supporting different rodent species.
* Difficult to count: Rodents are small and elusive, making them challenging to track and count.
* Constant change: Rodent populations fluctuate naturally due to factors like food availability, predators, and disease.
Instead of a specific number, here's what we know:
* High biodiversity: Brazil has an incredibly diverse rodent population, with over 200 species.
* Ecological importance: Rodents play vital roles in the ecosystem, from seed dispersal to food for other animals.
* Challenges: Some rodent species can be pests, impacting agriculture and public health.
If you're interested in learning more about specific rodent populations in Brazil, you could look into research conducted by universities or conservation organizations.