Search results for: pnas

Showing 1 - 10 of 16 results

10 June 2024
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23 August 2022
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16 August 2022
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9 August 2022
X RAY

Teeth hold valuable clues for understanding ancient climates and evolutionary processes

Increasing climate variability has been implicated as a driving force for the origins of our species (Homo sapiens) over 300,000 years ago,...

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13 January 2022
Vaccine Mandate Protest

Has the pandemic fundamentally changed our ethics?

As we head into the third year of the pandemic, debates continue to rage over the ethics of vaccine mandates, restrictions on civil liberties, the limits of government power and the inequitable distribution of vaccines globally. With so much disagreement over questions like these, has the pandemic fundamentally changed the way we think about ethics?

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2 November 2021
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27 July 2021
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8 October 2019

Researchers map climate change using historical mangrove records

Research looks to the past to identify historical changes in mangrove and salt marsh dominance and distribution over the past 250 years.

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17 October 2018
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4 April 2017
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