New ancient DNA analysis has shed light on how the black rat, blamed for spreading Black Death, dispersed across Europe—revealing that the rodent colonized the continent on two occasions in the Roman and Medieval periods.
Paleontology & Fossils
May 3, 2022
0
91
About 6,000 years ago, a bacterium underwent a few genetic changes. These allowed it to expand its habitat from the guts of mice to that of fleas. Such changes happen all the time, but in this particular instance the transformation ...
Cell & Microbiology
May 27, 2014
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0
Life expectancy in the United States dropped in 2020 due to COVID-19, but, for American adults without a college degree, the increase in mortality in adulthood occurred even earlier, according to a new study authored by Anne ...
Social Sciences
Mar 8, 2021
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73
The city of Ife has been significant to the Yoruba people of West Africa for as long as they can remember. It was briefly abandoned in the 19th century, and Gerard Chouin says the Yoruba repopulated the town, likely drawn ...
Archaeology
Jun 3, 2015
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10
(PhysOrg.com) -- New research shows that male suitors of a female cannibalistic spider risk facing a premature death unless they perform an adequate courtship lasting a minimum of 100 minutes. Further, the research shows ...
Plants & Animals
Oct 22, 2009
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0
The spread of the mosquito species Anopheles stephensi across Africa poses a significant problem to a continent already heavily burdened by malaria. Most—90%—of the world's malaria deaths are on the continent.
Ecology
Aug 18, 2022
1
17
The plague-causing bacteria Yersinia pestis evades detection and establishes a stronghold without setting off the body's early alarms. New discoveries reported this week help explain how the stealthy agent of Black Death ...
Cell & Microbiology
Dec 13, 2012
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0
Air pollution doesn't just come from cars on the road, generating electricity from fossil fuels also releases fine particulate matter into the air.
Environment
Nov 20, 2019
1
103
What exactly is the relationship between exposure to air pollution and its effect on human health? How much cleaner would the air have to be to reduce the health burden of dirty air? Can cities be designed so as to minimize ...
Environment
Aug 12, 2014
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0
Around 5,200 years ago, plague was not just present but common in six generations of one Swedish family, according to a new study. The researchers analyzed both the ancient DNA of these people's skeletal remains and the pathogens ...
Archaeology
Jul 15, 2024
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