© Alexine Keuroghlian/WCSResearchers surveying pig-like animals called peccaries in Brazil inadvertently discovered ancient drawings of animals, like the reptile shown here.
On the trail of the pig-like creatures in Brazil, researchers made an unexpected and rare discovery: cave drawings showing armadillos, birds and reptiles, etched into stone thousands of years ago.
Archaeologists who examined the rock art say hunter-gatherers likely created the drawings 4,000 to 10,000 years ago.
Researchers with the Wildlife Conservation Society (WCS) made the find while surveying white-lipped peccaries in Brazil's Cerrado plateau, a vast savanna region, in 2009. The animals, which travel long distances, are considered environmental indicators of healthy forests.
"Since we often work in remote locations, we sometimes make surprising discoveries, in this case, one that appears to be important for our understanding of human cultural history in the region," Alexine Keuroghlian, a researcher with WCS's Brazil program, said in a statement.
© Alexine Keuroghlian/WCSA wide array of animals were depicted in the cave drawings found in Brazil's Cerrado plateau.
Archaeologists say the style of the drawings is more diverse than expected. While some resemble ancient art from the central Brazilian plateau, others, surprisingly, seem etched in the artistic tradition of northeastern Brazil, the researchers said. In addition to human figures and geometric shapes, many different kinds of animals were represented, from big cats and armadillos to birds and reptiles, but alas, no peccaries.
The cave art has been described (in Portuguese) in the journal Revista Clio Arqueológica.
"These discoveries of cave drawings emphasize the importance of protecting the Cerrado and Pantanal ecosystems, both for their cultural and natural heritage," Julie Kunen, director of WCS's Latin America and the Caribbean program, said in a statement. "We hope to partner with local landowners to protect these cave sites, as well as the forests that surround them, so that the cultural heritage and wildlife depicted in the drawings are preserved for future generations."
The white-lipped peccary, whose scientific name is Tayassu pecari, is listed as a vulnerable species by the International Union for Conservation of Nature (IUCN), the world's main authority for the conservation status of wildlife. The animal's range extends from southern Mexico to northern Argentina. It faces threats in the wild including deforestation and hunting.
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