A new species of manakin, called Machaeropterus eckelberryi, has been discovered in the foothills of southwestern Loreto and northern San Martín departments,...
A new study of ancient DNA appears to rule out the likelihood that inhabitants of Easter Island intermixed with Native South Americans prior to the arrival...
Damsin, a natural compound isolated from the South American medicinal plant Ambrosia arborescens, has been found to inhibit the growth of cancer stem cells,...
A team of spider experts and students from the University of Vermont has discovered and described 15 new species of the spider genus Spintharus from the...
Exceptionally large individuals of Beelzebufo ampinga, an extinct species of frog that lived in Madagascar during the Late Cretaceous epoch, about 68 million...
Two bird species that look the same, but have songs so different they can’t recognize each other, should be considered distinct species, according to...
An international team of arachnologists has discovered and described three new species of Neotropical ‘club-tailed’ scorpions: Ischnotelson peruassu...
A new hummingbird species, called the dry-forest sabrewing, has been discovered in the tropical forests of eastern Brazil.
A young male of the dry-forest...
A new species of cottontail rabbit (genus Sylvilagus) has been described from the lowlands of western Suriname by Portland State University Professor Luis...
A Vanderbilt University-led team of archaeologists has made a remarkable discovery in Peru: thousands of 15,000- to 10,000-year-old artifacts, including...
Giant sloths, massive animals that lived in the Americas during the Ice Age, subsisted on an exclusively plant-based diet, according to an isotopic analysis...
Three new species of the ant genus Sericomyrmex have been discovered in Brazil, Venezuela, Colombia, Ecuador and Peru.
Sericomyrmex radioheadi, worker....
Brazilian taxonomists have discovered and described three new species of the ‘bird-eating’ tarantula genus Avicularia from Ecuador, Peru and Brazil.
Avicularia...
Adult and juvenile fossil specimens of Isostylomys laurdillardi, a giant rodent that lived in South America between 9 and 6.8 million years ago (Miocene...
