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Ancient bones from Ireland reveal that farming has changed nitrogen composition in land for the last 3,000 years.

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image: Africa’s Oldest Baobab Trees Are Dying Suddenly

Africa’s Oldest Baobab Trees Are Dying Suddenly

By Catherine Offord | June 12, 2018

Although more evidence is needed to pin down a cause, researchers suspect that climate change is to blame.

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image: Organic Compounds Found in Martian Soil

Organic Compounds Found in Martian Soil

By Sukanya Charuchandra | June 11, 2018

Researchers also found seasonal variations in atmospheric methane on the planet that may have a geological or biological origin.  

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image: Image of the Day: Older and Wiser

Image of the Day: Older and Wiser

By Sukanya Charuchandra | June 8, 2018

As the years go by, seabirds such as gannets get better at foraging.  

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image: Blood Test Predicts Pregnancy Due Date

Blood Test Predicts Pregnancy Due Date

By Kerry Grens | June 7, 2018

A small study based on circulating RNA in the blood of moms-to-be describes a technique that could be used to help predict who’s most at risk of preterm labor.

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Researchers find that conserving marsupials on a predator-free island dampens their avoidance behaviors, which could mean trouble for their reintroduction to mainland Australia.

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image: Image of the Day: Black-Eyed Rage

Image of the Day: Black-Eyed Rage

By Sukanya Charuchandra | June 6, 2018

When defensive, guppies display a warning sign to their counterparts. 

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Divergent human lineages of North America intermingled before setting off to establish populations of Central and South America.  

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image: Image of the Day: Cuddle Buddies

Image of the Day: Cuddle Buddies

By Sukanya Charuchandra | June 1, 2018

Researchers studying macaques in Morocco find that socialization improves the monkeys’ odds of surviving the winter. 

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image: China’s Flowers, 1922-1949

China’s Flowers, 1922-1949

By Ashley Yeager | June 1, 2018

Austrian-American botanist Joseph Rock collected thousands of plant samples in his 27 years in the Middle Kingdom, leaving after the Communist Party’s takeover.  

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