Although the microbiome—the collection of all microbes that live in the body—in the fecal matter of dogs has been investigated extensively, those studies have mostly been limited to domesticated dogs. In a new study, ...
Cell & Microbiology
5 hours ago
0
51
Attribution science has led to major advances in linking the impacts of extreme weather and human-induced climate change, but large gaps in the published research still conceal the full extent of climate change damage, warns ...
Environment
14 hours ago
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43
The earth doesn't give up its secrets easily—not even in the "Cradle of Humankind" in South Africa, where a wealth of fossils relating to human evolution have been found.
Paleontology & Fossils
Jun 27, 2022
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2450
Vultures perform important ecosystem functions as they clean the landscape by eating carcasses and thus limit the spread of wildlife diseases. Yet, vulture populations are rapidly declining, mainly owing to intentional and ...
Plants & Animals
Jun 27, 2022
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23
Delegates from almost 200 nations have made little progress towards hammering out a blueprint for a global pact to protect nature from human activity, after almost a week of difficult talks in Nairobi.
Environment
Jun 27, 2022
0
5
The first high-quality genome of the desert locust—those voracious feeders of plague and devastation infamy and the most destructive migratory insect in the world—has been produced by U.S. Department of Agriculture Agricultural ...
Biotechnology
Jun 27, 2022
0
38
A team led by researchers at the University of the Witwatersrand in Johannesburg, South Africa, with collaborators from the University of Pretoria (South Africa), as well as Mexico and Scotland, have made a new discovery ...
Optics & Photonics
Jun 24, 2022
1
40
Levels of methane, the second most important greenhouse gas in our atmosphere, continued their unrelenting rise in 2020 despite the economic slowdown caused by the COVID-19 pandemic.
Environment
Jun 24, 2022
0
22
A University of Alabama in Huntsville (UAH) student says his examination of the combined influence of dust and smoke on surface atmosphere temperatures in sub-Saharan Africa likely applies to conditions in the American West, ...
Earth Sciences
Jun 23, 2022
0
12
Moving from fossil fuels to clean energy sources comes with many side benefits, including a reduction in air pollution, which is responsible for premature deaths of 8–10 million people around the world.
Environment
Jun 22, 2022
0
7
Africa is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people (as of 2009, see table) in 61 territories, it accounts for about 14.8% of the World's human population. The continent is surrounded by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. Not counting the disputed territory of Western Sahara, there are 53 countries, including Madagascar and various island groups, associated with the continent.
Africa, particularly central eastern Africa, is widely regarded within the scientific community to be the origin of humans and the Hominidae tree (great apes), as evidenced by the discovery of the earliest hominids and their ancestors, as well as later ones that have been dated to around seven million years ago – including Sahelanthropus tchadensis, Australopithecus africanus, A. afarensis, Homo erectus, H. habilis and H. ergaster – with the earliest Homo sapiens (human) found in Ethiopia being dated to ca. 200,000 years ago.
Africa straddles the equator and encompasses numerous climate areas; it is the only continent to stretch from the northern temperate to southern temperate zones.
This text uses material from Wikipedia, licensed under CC BY-SA
