<div class="" data-article-body="true">A strikingly orange frog that fits on a pencil tip lives among the clouds in Brazil. Scientists encountered the newly named species, Brachycephalus lulai, in the cloud forests that cloak the Serra do Quiriri mountain range in the south of the country. B. lulai only measures up to a little over a half-inch long—female individuals are longer than males—making it among the tiniest four-legged creatures on the planet. The species was named after Luiz Inácio Lula da Silva, Brazil’s current president.The international team of scientists spent years tracking down wee amphibians in the Brachycephalus genus, which live in a limited range among leaf litter in the Brazilian Atlantic Forest. Their colors vary from neon orange to more muted, green-tinged hues.<figure class="relative mb-4"><div class="relative"><img alt="&lt;strong&gt;RAINBOW CONNECTION: &lt;/strong&gt;&lt;em&gt;Brachycephalus &lt;/em&gt;species come in a wide range of hues, including highlighter orange. &lt;em&gt;Image from Bornschein, M., &lt;/em&gt;et al. PLOS One&lt;em&gt; (2025).&lt;/em&gt;" loading="lazy" width="960" height="960" decoding="async" data-nimg="1" class="rounded-lg" style="color:transparent" src="https://s.yimg.com/ny/api/res/1.2/wsONO0crI098CyG.g7s_Ag--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTk2MDtjZj13ZWJw/https://media.zenfs.com/en/nautilus_articles_455/62fe89bd9c6eb5426a93c4d64c114b18"><button aria-label="View larger image" class="group absolute bottom-3 right-3 size-10 md:size-[50px] lg:inset-0 lg:size-full lg:bg-transparent" data-ylk="elm:expand;itc:1;sec:image-lightbox;slk:lightbox-open;"><span class="absolute bottom-0 right-0 rounded-full bg-white p-3 opacity-100 shadow-elevation-3 transition-opacity duration-300 group-hover:block group-hover:opacity-100 md:p-[17px] lg:bottom-6 lg:right-6 lg:bg-white/90 lg:p-5 lg:opacity-0 lg:shadow-none"><svg viewbox="0 0 22 22" aria-hidden="true" class="size-4 lg:size-6" width="22" height="22"><path d="M12.372.92c0-.506.41-.916.915-.916L21 0l-.004 7.712a.917.917 0 0 1-1.832 0V3.183l-6.827 6.828-1.349-1.348 6.828-6.828h-4.529a.915.915 0 0 1-.915-.915M1.835 17.816l6.828-6.828 1.349 1.349-6.829 6.827h4.529a.915.915 0 0 1 0 1.831L0 21l.004-7.713a.916.916 0 0 1 1.831 0z"></path></svg></button><dialog aria-label="Modal Dialog" aria-modal="true" class="fixed inset-0 z-4 size-full max-h-none max-w-none bg-white hidden"></dialog></div><figcaption class="relative text-sm mt-1 pr-2.5"><div style="max-height:none;overflow:visible">RAINBOW CONNECTION: Brachycephalus species come in a wide range of hues, including highlighter orange. Image from Bornschein, M., et al. PLOS One (2025).</div></figcaption></figure>The researchers said they found this petite species thanks to its distinctive mating call, groups of two brief pulses of sound that differ from the songs of other local members of the genus. After analyzing the frog’s skeletal structure and DNA to confirm it is an undiscovered species, the researchers identified B. lulai’s closest relatives as two species that also live in the Serra do Quiriri. The frog findings were <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0334746" rel="nofollow noopener" target="_blank" data-ylk="slk:published;elm:context_link;itc:0;sec:content-canvas" class="link ">published</a> in PLOS One.The team proposes that B. lulai be considered a species of Least Concern of extinction, due to a lack of serious threats to the frog and the current health of its environment. And as the local climate continues to grow wetter and cloud forests grow, they noted in the paper, so do the homes of Brachycephalus species. But some members of the genus do have particularly tiny ranges and face the risk of extinction. The authors hope to promote conservation efforts to ensure the survival of B. lulai and its petite relatives.Read more: “<a href="https://nautil.us/the-queer-lives-of-frogs-1238441/" rel="nofollow noopener" target="_blank" data-ylk="slk:The Queer Lives of Frogs;elm:context_link;itc:0;sec:content-canvas" class="link ">The Queer Lives of Frogs</a>”“We seek to encourage the expansion of conservation initiatives focused on the Atlantic Forest as a whole, and on Brazil’s highly endemic miniaturized frogs in particular,” they wrote in the paper.To this end, they said they hope to create a wildlife refuge in the Serra do Quiriri area to protect B. lulai and its relatives, and ensure that the unique ecosystem is regularly monitored—helping these mini frogs continue to thrive among the clouds.Enjoying  <a href="https://nautil.us/" rel="nofollow noopener" target="_blank" data-ylk="slk:Nautilus;elm:context_link;itc:0;sec:content-canvas" class="link ">Nautilus</a>? Subscribe to our free <a href="https://nautil.us/newsletter/?_sp=c43011db-6fcf-42f2-a38c-e033b87a4a1d.1759265717430" rel="nofollow noopener" target="_blank" data-ylk="slk:newsletter;elm:context_link;itc:0;sec:content-canvas" class="link ">newsletter</a>.This story was originally featured on <a href="https://nautil.us/this-tiny-neon-frog-dwells-in-the-clouds-1254066/" rel="nofollow noopener" target="_blank" data-ylk="slk:Nautilus;elm:context_link;itc:0;sec:content-canvas" class="link ">Nautilus</a>.</div>

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