The richest countries emit more carbon dioxide than the rest of the world combined, while population is only growing in the poorest countries. These are two widespread notions that argue for focusing on reducing emissions ...
Environment
Apr 24, 2023
1
128
Lettuce and other leafy green vegetables are part of a healthy, balanced diet—even for astronauts on a mission.
Space Exploration
Jan 22, 2024
0
54
A recent report from the US Centers for Disease Control and Prevention shows US fertility rates dropped 2% in 2023. With the exception of a temporary increase in the fertility rate at the height of the COVID-19 pandemic, ...
Social Sciences
May 10, 2024
1
47
California sea lions have managed to maintain—and, in the case of males, increase—their average body size as their population grows and competition for food becomes fiercer. This is in contrast to other marine mammals, ...
Plants & Animals
Apr 27, 2023
0
76
Ever since Charles Darwin published his landmark theory of how species evolve, biologists have been fascinated with the intricate mechanisms that make evolution possible.
Evolution
May 10, 2024
0
887
There is broad agreement that Homo sapiens originated in Africa. But there remain many uncertainties and competing theories about where, when, and how.
Archaeology
May 17, 2023
0
509
Australia's dingo fence is an internationally renowned mega-structure. Stretching more than 5,600 kilometers, it was completed in the 1950s to keep sheep safe from dingoes. But it also inadvertently protects some native species.
Evolution
Jun 1, 2023
0
445
When most people think of deserts, the word that often comes to mind is sand—and a lot of it. Deserts cover almost a quarter of the earth, yet it's hard to imagine life thriving in such hostile environments, regulated by ...
Plants & Animals
Feb 2, 2023
0
17
New research involving Cambridge University has found evidence—locked into an ancient stalagmite from a cave in the Himalayas—of a series of severe and lengthy droughts which may have upturned the Bronze Age Indus Civilization.
Archaeology
Apr 26, 2023
0
69
For more than 50 years, dental anthropologists have studied variation in the shape of human teeth to study the patterns of migration that people took as they populated the world. The last major continental migration event ...
Archaeology
Dec 18, 2023
0
37
