A frog without a leap, but with a genetic hope that could save it from extinction

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With its vibrant yellow and black skin, the **Pseudophryne corroboree** is one of the most unique frogs in Australia and the world. This tiny species stands out not only for its appearance but also for **its peculiarity of not jumping** and for its [ability to produce toxins](https://noticiasambientales.com/animales/las-ranas-venenosas-de-colombia-en-peligro-por-el-trafico-de-fauna/), both naturally and through its diet.

However, the devastating fungal disease known as chytridiomycosis and **climate change** have led to this species being considered “functionally extinct” in the wild.

The impact of the fungus **Batrachochytrium dendrobatidis** was devastating: it **affects the skin of amphibians, essential for their respiration and water balance**, causing a **collapse in their populations**. Currently, this emblematic species from the alpine wetlands of New South Wales survives only in captivity, maintained by zoos and conservation centers.

Despite this scenario, a light shone in the laboratories of the University of Melbourne. There, a team of scientists **successfully sequenced the frog’s genome completely**, which amounts to a staggering 8.87 gigabases—more than triple the size of the human genome. The discovery was published in **Wellcome Open Research** and offers **new hope for its conservation**.

![Pseudophryne corroboree, the frog that doesn’t jump but has a quality that could save its species. Photo: ResearchGate.](https://storage.googleapis.com/media-cloud-na/2025/05/rana-sin-salto-3.jpg.webp)

## The Power of DNA: A New Path Against Extinction

Dr. Tiffany Kosch, the study’s lead, stated that **this breakthrough is a key step to reintroduce the frog to its natural habitat**. By understanding its complex genetics, scientists hope to **identify genes linked to resistance to the fungus**, potentially allowing the breeding of stronger specimens and their reintroduction into safe areas.

The genetic uniqueness of this frog has also sparked great interest. **Over 80% of its DNA does not encode proteins**, suggesting yet unknown regulatory functions.

Some researchers believe that this non-coding material could play a role in **the immune response to diseases like chytridiomycosis**, further expanding the possibilities of protecting not only this species but other endangered amphibians as well.

While captive breeding programs have kept the species alive, reintroduction into the wild remains a complex goal. It’s not enough to return them to their natural environment: it is essential to ensure they have the **appropriate climatic conditions**, **protection against the fungus**, and a population robust enough to sustain itself.

## A Genetic Conservation Model for the World

The case of the **Pseudophryne corroboree** could set a precedent. The research opens the door to **new conservation strategies**, such as **genetic editing or selective breeding**, which could be applied to other species facing similar threats.

As the University of Melbourne team asserts, the study of this genome aims not only to save a frog but represents a model of how science can [reverse the fate of the planet’s most vulnerable species](https://noticiasambientales.com/ciencia/esperanza-para-las-ranas-de-darwin-cientificos-en-londres-consiguen-reproducirlas/).

In a world where **biodiversity faces multiple challenges**, the sequencing of the DNA of this tiny Australian frog becomes a symbol of **scientific resilience and ecological hope**.

![Pseudophryne corroboree, the frog that doesn’t jump. Photo: ResearchGate.](https://storage.googleapis.com/media-cloud-na/2025/05/rana-sin-salto-2.jpg)

## Curiosities of a Survivor: Why Doesn’t the Pseudophryne corroboree Jump?

At first glance, the **Pseudophryne corroboree**—a tiny and colorful frog endemic to the Australian Alps—seems to share many characteristics with other amphibians. However, it has a peculiarity that sets it apart from its closest relatives: it doesn’t jump. This biological curiosity **intrigued scientists for decades** and has its explanation in the evolution of its morphology and behavior.

Unlike frogs that move by long jumps powered by powerful hind limbs, the **Pseudophryne corroboree** has developed **a slower and more terrestrial locomotion style**. Its hind legs are shorter and less muscular, limiting its ability to jump long distances.

This condition is not a defect but **an adaptation to its habitat**: humid alpine environments with dense vegetation and soft soil, where a more leisurely movement may be more effective for foraging and avoiding predators.

Furthermore, its way of life highlights this peculiarity. The **Pseudophryne corroboree** **spends most of its time in burrows** or under leaf litter, where jumps are impractical. Its cryptic behavior and its potent aposematic coloration—yellow and black—serve as defense, warning of its toxicity and reducing the need to flee quickly. Thus, this frog demonstrates that in nature, the fastest doesn’t always win: sometimes, **survival depends on adaptations** as unexpected as not being able to jump.

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