Human populations need at least 2.7 children per woman—a much higher fertility rate than previously believed—to reliably avoid long-term extinction, according to a new study published in the ...

The new research reveals that small population sizes and random birth patterns raise the fertility threshold needed to avoid extinction. (Rafael A.S. Martins/Unsplash via Courthouse News) (CN) — With ...

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One of the most elusive animal species may disappear, researchers said. Survival of snow leopard populations could be "precarious" in the future due to the way the elusive mountain cats have evolved, ...

The population of the critically endangered North Atlantic right whale has increased slightly, leading conservationists to urge the federal government and the shipping and fishing industries to step ...

Polar bears are struggling to survive as sea ice dwindles. Scientists have now quantified how much climate change has drastically reduced the number of polar bears living in Canada's Hudson Bay, the ...

SpaceX CEO Elon Musk has dramatically declared on social media that declining global fertility rates "will lead to mass extinction of entire nations." This isn't the first time the SpaceX CEO, known ...

Elon Musk has issued a stark warning about declining birth rates, particularly in Europe, citing Poland's low fertility rate ...

The new research reveals that small population sizes and random birth patterns raise the fertility threshold needed to avoid extinction. Credit: Rafael AS Martins ...

The new research reveals that small population sizes and random birth patterns raise the fertility threshold needed to avoid extinction. Human populations need at least 2.7 children per woman – a much ...