We are still discovering what lives here, and we are running out of time.
En las laderas boscosas donde los Andes comienzan su descenso hacia la Amazonía, un investigador que realizaba estudios de impacto ambiental para una central hidroeléctrica encontró, sin buscarlo, una criatura que la ciencia nunca había registrado. El lagarto, bautizado Enyalioides feiruzae y anunciado en 2021 dentro del Parque Nacional Tingo María, no es solo un hallazgo taxonómico: es un recordatorio de que la vida sigue superando en velocidad a nuestro conocimiento de ella, especialmente en los rincones más remotos del planeta. Su existencia plantea una pregunta que trasciende la biología: ¿cuánto estamos dispuestos a perder antes de terminar de aprender lo que tenemos?
- Un investigador que evaluaba el impacto de una represa descubrió accidentalmente una especie de lagarto desconocida para la ciencia, revelando cuán poco sabemos de estos bosques.
- La mitad de las dieciséis especies del género Enyalioides han sido identificadas apenas en los últimos veinte años, señal de que la exploración científica de los Andes tropicales sigue profundamente incompleta.
- La especie sobrevive únicamente en fragmentos de bosque primario y secundario dentro del Parque Nacional Tingo María, lo que la hace inmediatamente vulnerable a cualquier alteración del territorio.
- La expansión agrícola y los proyectos de infraestructura avanzan sobre la cuenca del Huallaga sin que se haya completado un inventario básico de la vida que alberga.
- El hallazgo impulsa un llamado urgente a profundizar la investigación en la región antes de que el desarrollo transforme ecosistemas que aún no hemos terminado de descubrir.
En los bosques empinados del centro de Perú, donde los Andes inician su caída hacia la Amazonía, un investigador que realizaba una evaluación de impacto ambiental para una hidroeléctrica propuesta sobre el río Huallaga encontró algo que nadie esperaba: un lagarto que la ciencia nunca había documentado. El animal, nombrado Enyalioides feiruzae, fue anunciado en 2021 por el Servicio Nacional de Áreas Naturales Protegidas, sumando una pieza nueva a un rompecabezas cada vez más urgente sobre la vida que habita estas montañas remotas.
Pablo Venegas, el investigador que lo halló, trabajaba en el Parque Nacional Tingo María, en la provincia de Huánuco. El lagarto apareció cerca de la comunidad de Tres de Mayo, en parches de bosque secundario y fragmentos de bosque primario que sobreviven en las laderas más escarpadas. Geográficamente, fue un descubrimiento pequeño. En términos de lo que revela, fue enorme.
El género Enyalioides cuenta hoy con dieciséis especies, y lo más llamativo es el ritmo al que se acumulan: la mitad fueron identificadas en los últimos veinte años, todas en rincones remotos de los Andes tropicales de Perú y Ecuador. No es un grupo bien conocido al que se le añade una especie de vez en cuando; es un grupo que la ciencia todavía está descubriendo activamente.
La cuenca del Huallaga encaja perfectamente en ese patrón. Abarca múltiples ecosistemas, incluidas las Yungas peruanas, una zona de transición entre la montaña y la selva reconocida como centro de endemismo, donde especies únicas han evolucionado en aislamiento durante milenios. Sin embargo, la región permanece en gran parte sin estudiar.
Esa brecha entre lo que existe y lo que conocemos adquiere una dimensión crítica frente a lo que se avecina. El proyecto hidroeléctrico que llevó a Venegas al área es solo una de las presiones; la expansión agrícola es otra. El descubrimiento de Enyalioides feiruzae es, en un sentido, un logro científico. En otro, es una advertencia: seguimos descubriendo lo que vive aquí, y el tiempo para hacerlo antes de transformarlo para siempre se agota.
In the steep forests of central Peru, where the Andes begin their descent toward the Amazon, a researcher conducting environmental surveys stumbled upon a creature no scientist had ever formally documented. The discovery came not in a planned expedition but during fieldwork for something else entirely—an environmental impact assessment for a hydroelectric plant proposed along the Huallaga River. The lizard, formally named Enyalioides feiruzae, was announced by Peru's National Service of Protected Natural Areas in 2021, adding another piece to an increasingly urgent puzzle about what lives in these remote mountain forests and what stands to be lost.
Pablo Venegas, the researcher who found it, was working in the Tingo María National Park, a protected reserve in Huánuco province in the country's central highlands. The lizard turned up near the rural community of Tres de Mayo, in patches of secondary forest and fragments of older primary forest clinging to the steepest slopes where human activity had not yet fully taken hold. It was a small discovery in geographic terms—a single location, a handful of specimens—but it carried outsized significance for what it revealed about the region's biological richness.
The genus Enyalioides, to which this new species belongs, contains sixteen species total. What makes that number striking is the pace of discovery: half of all known Enyalioides species have been identified in just the last twenty years, all of them in remote corners of the tropical Andes spanning Peru and Ecuador. This is not a genus that was well understood and then occasionally added to. It is a genus that science is still actively discovering, which suggests the forests where these lizards live remain poorly explored despite their ecological importance.
The Huallaga basin, where Venegas made his find, is precisely the kind of landscape that fits this pattern. The region encompasses multiple ecosystems, including the Peruvian Yungas—a transition zone between mountain and rainforest that scientists recognize as a center of endemism, meaning it harbors species found nowhere else on Earth. Birds, mammals, amphibians, and reptiles have evolved in isolation here for millennia. Yet the basin remains largely unstudied, its full inventory of life still unknown to science.
This gap between what exists and what we know about it takes on urgency because of what is coming. The hydroelectric project that brought Venegas to the area in the first place represents one form of pressure. Agricultural expansion represents another. The Sernanp statement accompanying the discovery emphasized that the Huallaga basin could face significant impact from development activities—farming, infrastructure, resource extraction—unless that development is guided by a deeper understanding of what the region contains. Finding a new lizard species is, in one sense, a small thing. In another sense, it is a warning: we are still discovering what lives here, and we are running out of time to do so before we change it forever.
Citas Notables
The discovery underscores the importance of deeper research into biodiversity in the Huallaga basin, an area harboring multiple ecosystems including the Peruvian Yungas, a center of endemism for birds, mammals, amphibians and reptiles that remains largely unexplored and could face significant impact from unplanned agricultural and development activities.— Peru's National Service of Protected Natural Areas (Sernanp)
La Conversación del Hearth Otra perspectiva de la historia
Why does finding a single new lizard species matter enough to announce it nationally?
Because it's not really about the lizard. It's a signal. If we're still discovering species in a protected national park, in an area that's been inhabited for centuries, it means we don't actually know what's there. And if we don't know what's there, we can't make informed decisions about what we're about to build or farm or extract.
But this lizard—it only lives in one place, in those steep forest patches. Isn't it already doomed if development happens?
Possibly. But that's exactly the point Sernanp is making. Right now, the only population we know of is in Tingo María. That doesn't mean it doesn't exist elsewhere—it means we haven't looked. And if we start building dams and clearing land before we've looked, we might erase species we never even knew existed.
The researcher found it while doing environmental impact work for a hydroelectric plant. Doesn't that seem like a conflict—he's supposed to assess the damage, but he's also discovering new things that might stop the project?
That's the tension, yes. His job was to document what's there so decision-makers understand the cost. He did that. Whether the project moves forward anyway is a different question—one that involves money, politics, energy needs. But at least now the choice is informed.
Half of all Enyalioides species discovered in twenty years—that's a fast pace. What does that tell us?
It tells us these forests are still largely unknown to science. We're not talking about well-studied ecosystems where new discoveries are rare. We're talking about places where the basic inventory of life is incomplete. That's humbling and alarming at the same time.
What happens to this lizard now?
It stays in those forest patches, assuming they stay intact. It's protected by the national park designation. But the park exists in a landscape under pressure. The real question is whether the surrounding basin gets developed in ways that fragment the forest further, or whether the discovery of species like this one influences how development is planned.