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Articles written by Christina Larson

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Difficult but rewarding work: Planting trees to aid climate

MADRE DE DIOS, Peru (AP) — Destruction of the forests can be swift. Regrowth is much, much slower. But around the world, people are putting shovels to ground to help it happen. In a corner of the Peruvian Amazon, where illegal gold mining has...

 

Intrepid scientists witness final days of Venezuelan glacier

MERIDA, Venezuela (AP) — Blackouts shut off the refrigerators where the scientists keep their lab samples. Gas shortages mean they sometimes have to work from home. They even reuse sheets of paper to record field data because fresh supplies are so...

 

Coral gardeners bring back Jamaica's reefs, piece by piece

OCHO RIOS, Jamaica (AP) — Everton Simpson squints at the Caribbean from his motorboat, scanning the dazzling bands of color for hints of what lies beneath. Emerald green indicates sandy bottoms. Sapphire blue lies above seagrass meadows. And deep...

 

Signs of ritual pot smoking found in ancient Chinese graves

WASHINGTON (AP) — Archaeologists have unearthed the earliest direct evidence of people smoking marijuana from a 2,500-year-old graveyard in western China. In a complex of lofty tombs in the Pamir Mountains — a region near the borders of modern...

 

Robot recreates the walk of a 290-million-year-old creature

WASHINGTON (AP) — How did the earliest land animals move? Scientists have used a nearly 300-million-year old fossil skeleton and preserved ancient footprints to create a moving robot model of prehistoric life. Evolutionary biologist John Nyakatura...

 

Medieval woman's hidden art career revealed by blue teeth

WASHINGTON (AP) — About 1,000 years ago, a woman in Germany died and was buried in an unmarked grave in a church cemetery. No record of her life survived, and no historian had reason to wonder who she was. But when modern scientists examined her...

 

Gene-editing Chinese scientist kept much of his work secret

SHENZHEN, China (AP) — The Chinese scientist who says he helped make the world's first gene-edited babies veered off a traditional career path, keeping much of his research secret in pursuit of a larger goal — making history. He Jiankui's outsize...

 

Rare conservation win: Mountain gorilla population ticks up

WASHINGTON (AP) — There are more gorillas in the mist — a rare conservation success story, scientists say. After facing near-extinction, mountain gorillas are slowly rebounding. On Wednesday, the Switzerland-based International Union for...

 

Oldest known animal drawing found in remote Indonesian cave

WASHINGTON (AP) — Scientists have found the oldest known example of an animal drawing: a red silhouette of a bull-like beast on the wall of a remote Indonesian cave. The sketch is at least 40,000 years old, slightly older than similar animal...

 

China building boom uncovers buried dinosaurs, makes a star

YANJI, China (AP) — At the end of a street of newly built high-rises in the northern Chinese city of Yanji stands an exposed cliff face, where paleontologists scrape away 100 million-year-old rock in search of prehistoric bones. Like many fossil...

 

Walrus bones provide clues to fate of lost Viking colony

WASHINGTON (AP) — Clues to the mystery of why Viking colonies in Greenland flourished and fell have been found in the DNA of medieval walrus bones housed in more than a dozen European museums. For almost 500 years, the Norse descendants of Erik the...

 

Birds learn another 'language' by eavesdropping on neighbors

WASHINGTON (AP) — For birds, understanding neighborhood gossip about an approaching hawk or brown snake can mean the difference between life or death. Wild critters are known to listen to each other for clues about lurking predators, effectively...

 

Deep origin of rare blue diamonds revealed in their flaws

WASHINGTON (AP) — Blue diamonds — like the Smithsonian's famous Hope diamond — are the rarest of all and how they formed more than a billion years ago is a bit of a mystery. Now scientists think they have a glimmer of an answer. They've long...

 

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