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Vicuñas <em>(Lama vicugna)</em> run across the plains in San Guillermo National Park, Argentina.
How Mange Remade an Ecosystem
A study traces the effects of a mite outbreak from the earth to the heavens.
How Mange Remade an Ecosystem
How Mange Remade an Ecosystem

A study traces the effects of a mite outbreak from the earth to the heavens.

A study traces the effects of a mite outbreak from the earth to the heavens.

South America
Composite image of earliest humans and wooly mammoths
New Evidence Complicates the Story of the Peopling of the Americas
Emma Yasinski | May 2, 2022 | 10+ min read
New techniques have shown that people reached the New World far earlier than the long-standing estimate of 13,000 years ago, but scientists still debate exactly when humans arrived on the continent—and how.
Illustrated map showing where evidence was found of the earliest humans
Infographic: Mixed Evidence on Human Occupation of the Americas
Emma Yasinski | May 2, 2022 | 3 min read
Diverse lines of evidence point to humans’ presence in the New World long before the dawn of Clovis culture. But rewriting this chapter of human history raises many questions about how these early people came to inhabit these continents.
Thomas Lovejoy wearing glasses and smiling at camera
“Godfather of Biodiversity” Thomas Lovejoy Dies at 80
Lisa Winter | Jan 12, 2022 | 3 min read
The famous ecologist was a lifelong champion for conservation.
mummy
Scratchy Scalps Help Glue Together Pieces of an Ancient Past
Chloe Tenn | Dec 29, 2021 | 3 min read
Scientists find human DNA preserved in lice cement from the heads of South American mummies.
A boat, the Tara, sailing past an island in Patagonia, Chile
Sailing the Seas in Search of Microbes
Shawna Williams | Jun 1, 2021 | 5 min read
Projects aimed at collecting big data about the ocean’s tiniest life forms continue to expand our view of the seas.
a sunset reflected in a still river through a rainforest
Book Excerpt From A Most Remarkable Creature
Jonathan Meiburg | Mar 30, 2021 | 5 min read
In Chapter 15, “Above the Falls,” author Jonathan Meiburg recounts an evening on a research expedition near the Rewa River in Guyana.
Lessons from Darwin’s “Mischievous” Birds
Jonathan Meiburg | Mar 1, 2021 | 3 min read
An unsung group of South American falcons yields clues to the prehistory of a continent, and hints at secrets of the avian brain.
The Peopling of South America
Shawna Williams | Sep 1, 2020 | 10+ min read
While questions still outnumber answers, new findings from archaeology, genetics, and other disciplines are revealing surprising insights into the early cultures of the most recently populated continent.
Infographic: South America’s Early Prehistory
Shawna Williams | Sep 1, 2020 | 4 min read
Genetics and archaeology yield clues as to when humans first arrived on the continent and how these early settlers lived.
Native Americans Crossed the Pacific Long Before Europeans
Abby Olena, PhD | Jul 8, 2020 | 4 min read
Genetic evidence points to individuals from South America having possibly floated on a raft to Polynesian islands about 500 years before Europeans navigated there.
Yet Another Brazilian Museum Suffers Fire, Loss Of Specimens
Lisa Winter | Jul 3, 2020 | 2 min read
The Natural History Museum and Botanical Garden is still assessing the damage from a June 15 fire.
Special Report
Surgisphere Sows Confusion About Another Unproven COVID-19 Drug
Catherine Offord | Jun 16, 2020 | 10+ min read
The company behind a now-discredited study on hydroxychloroquine also posted a report that has been cited by Latin American governments recommending ivermectin as a possible coronavirus treatment. Clinicians there say the effects have been extremely damaging.
Image of the Day: Big Body, Little Brain
Amy Schleunes | Feb 20, 2020 | 1 min read
An extinct rodent relative of the capybara appears to have had a smaller brain-to-body ratio than similar species.
Life Rides the Wind in the Desert
Ashley Yeager | Dec 1, 2019 | 4 min read
As the afternoon breezes blow harder in the Atacama Desert—a place so desolate it’s used as a model of Mars—more microbes move into its driest regions.
national museum brazil rio de janeiro fire museu nacional
Amid Science Cuts, Brazil’s National Museum Tries to Recover
Ignacio Amigo | Jun 11, 2019 | 4 min read
Nine months after a fire destroyed priceless collections, scientists are working restore the archives and keep their research afloat.
Ancient DNA Maps Early American Migrations in New Detail
Ashley Yeager | Nov 8, 2018 | 2 min read
Genetic information from dozens of individuals living 700 to 10,000 years ago reveals connections between Clovis and Native Americans and South Americans.
Ancient Andeans Had Novel Genetic Advantages to Adapt to Altitude
Ashley Yeager | Oct 19, 2018 | 3 min read
Unlike other populations living at high altitude, Andeans didn’t rely on hypoxia-related genes.
New Study Contradicts Previous Idea About Origins of South Americans
Sukanya Charuchandra | Jun 1, 2018 | 2 min read
Divergent human lineages of North America intermingled before setting off to establish populations of Central and South America.  
Neurophysiologist, Ethnographer, and World Explorer Dies
Aggie Mika | Jul 18, 2017 | 2 min read
S. Allen Counter pursued scientific questions within various cultures throughout the world.
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