and human population growth (e.g., how fast will the ... have observed that the size of many populations fluctuates over time rather than remaining constant as logistic growth predicts.

Now it turns out that some birdsongs also contain a hidden world of shared language, with varying local accents and dialects ...

These data for the US human population suggest something general ... the estimate of the intrinsic rate of natural increase; over a short period of time, tends to decrease. This means that there ...

The human population has experienced a period of unprecedented growth, more than tripling in size since 1950. It reached almost 7.8 billion in 2020 and is projected to grow to over 8.5 billion in ...

“I think the key finding is that we are documenting for the first time a hominin population that we did not know we had in Europe.” Chris Stringer, a research leader in human evolution at ...

Humans’ impact has been so profound that scientists have proposed that the Holocene era be declared over and the current epoch (beginning ... now are fundamentally different from those at any other ...

Human brains contain higher concentrations of microplastics than other organs, according to a new study, and the amount appears to be increasing over time. In the study, published in early ...

The spread of population across the ... sapiens rather than other archaic human species. Experts conducted luminescence dating, which analyzed the last time the fragments were exposed to sunlight ...