©Luiz Fernando Ribeiro, CC-BY 4.0

Biologists have discovered a new species of pumpkin toadlet, an adorable, carrot-hued amphibian that fits on the tip of a pencil and inhabits the cloud forests of the Serra do Quiriri mountain range in southern Brazil. Researchers identified the toadlet after observing the unique advertising calls produced by males to attract members of the opposite sex. The species — named Brachycephalus lulai after the Brazilian president Luiz Inácio Lula da Silva — has now been described for the first time in the journal Plos One. …And yet, despite having a skin color that resembles a high-vis jacket, these toadlets are surprisingly hard to spot. It was their impressive vocal performance, not their looks, that led to their discovery.