Discover the intriguing **Serra da Mantiqueira Atlantic Tree-rat** (*Hipposideros piscivorus*), a medium-sized rodent native to Brazil's tropical montane forests. Perfectly adapted to its humid highland habitat, this nocturnal creature plays a vital role in seed dispersal and exhibits fascinating social behaviors, making it a key player in maintaining biodiversity. However, with a vulnerable conservation status due to habitat loss, this unique species urgently needs protection to ensure its survival in the wild.