populations

Science

Huge sea-urchin populations are overwhelming Hawaii’s coral reefs

As coral reefs struggle to adapt to warming waters, high levels of pollution and sea-level rise, ballooning sea-urchin populations are…

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Climate change and prehistoric human populations: Eastward shift of settlement areas at the end of the last ice age

A new study sheds light on how prehistoric hunter-gatherer populations in Europe coped with climate changes over 12,000 years ago.…

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Discrimination-related depression, anxiety pronounced among multiracial, White, Asian populations

A new study found that more than half of US adults encounter some form of discrimination, and that this mistreatment…

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Most of the world’s sea turtle populations are rebounding – even amid climate change threats

Most sea turtle populations are rebounding around the world, researchers said this week. That promising news comes even amid continuing…

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US bird populations continue alarming decline

The release of the 2025 U.S. State of the Birds report was announced today at the 90th annual North American…

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Insect populations are declining — and that is not a good thing

Tiny, cold-blooded animals like flies depend on their environment to regulate body temperature, making them ideal “canaries in the mine”…

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Hotter temperatures are helping rat populations grow : NPR

Winters are warming around the country, which gives rats more of an opportunity to search for food. AP/Richard Drew hide…

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Ecologist’s studies on the effects of prey depletion on populations of large African carnivores

Two recently published studies by a Montana State University ecologist reveal new findings about the relationship between population dynamics of…

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Insights into how populations conform or go against the crowd

Cultural traits — the information, beliefs, behaviors, customs, and practices that shape the character of a population — are influenced…

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Overfishing has halved shark and ray populations since 1970

A new analysis published in the journal Science reveals that overfishing has caused populations of chondrichthyan fishes — sharks, rays,…

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