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New Frog Species Discovered in Amazon Rainforest

Mayur Tembhare
  1. A new frog species, Adenomera varcena, was discovered in the western Amazon rainforest.

  2. The frog was found in seasonally flooded forests, a previously unknown habitat for its genus.

  3. Researchers used DNA and distinctive call to identify the new species.

  4. The discovery highlights the importance of cryptic diversity, where animals that look similar can belong to separate species.

New Frog Species Discovered in Amazon Rainforest

Topic: Biology

Scientists have discovered a new frog species in the Amazon rainforest. The frog, named Adenomera varcena, was found in seasonally flooded forests of western Amazon. Researchers used DNA and distinctive call to identify the new species.

A team of scientists has identified a previously unknown frog species living in the seasonally flooded forests of the western Amazon. The species, named Adenomera varcena, adds to growing evidence that Amazonian biodiversity is even richer than it appears.

The discovery highlights the importance of cryptic diversity, where animals that look nearly identical can actually belong to separate species. Researchers distinguished the new frog by combining several lines of evidence, including its DNA and distinctive call. The findings were published in the journal Ichthyology & Herpetology.

The research team includes Célio F. B. Haddad, a professor at São Paulo State University (UNESP), and Thiago R. Carvalho, a professor at the Federal University of Minas Gerais (UFMG). Both are part of the Center for Research on Biodiversity Dynamics and Climate Change (CBioClima), a Research, Innovation, and Dissemination Center (RIDC) funded by FAPESP.

The discovery grew out of field expeditions in the Upper Juruá River region of western Acre. Scientists surveyed forest fragments near the Moa and Crôa rivers, close to Cruzeiro do Sul. Confirming that the frog represented a new species required far more than simply examining its appearance.

Why It Matters

This discovery is important because it highlights how much we still don't know about Amazonian biodiversity. It also shows the importance of protecting these ecosystems, which are home to many unknown species.

Key Facts

  • A new frog species, Adenomera varcena, was discovered in the western Amazon rainforest.
  • The frog was found in seasonally flooded forests, a previously unknown habitat for its genus.
  • Researchers used DNA and distinctive call to identify the new species.
  • The discovery highlights the importance of cryptic diversity, where animals that look similar can belong to separate species.
  • The research team included professors from São Paulo State University and Federal University of Minas Gerais.

Key Terms

Cryptic diversity
When animals that look nearly identical can actually belong to separate species.

Implications

This discovery is important because it highlights how much we still don't know about Amazonian biodiversity. It also shows the importance of protecting these ecosystems, which are home to many unknown species.

Source: https://www.sciencedaily.com/releases/2026/09/260917003737.htm

Journal reference:

  1. Marianna S. Borburema, Leandro J. C. L. Moraes, Marcus Thadeu T. Santos, Santiago R. Ron, Célio F. B. Haddad, Ariovaldo A. Giaretta, Thiago R. Carvalho. A New Species of Terrestrial Foam-Nesting Frog (Adenomera, Leptodactylidae) from the Várzea Forests of Western Amazonia. Ichthyology, 2026; 114 (2): 204 DOI: 10.1643/h2025033

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