A new University of California San Diego study published in Cell challenges a long-standing assumption about how animal viruses become capable of sparking human epidemics and pandemics. Using a ...
The last time the Earth was hotter than it is today was at least 125,000 years ago, long before anything that resembled human civilization appeared. Since 1970, the Earth’s temperature has spiked ...
The avian flu virus isolated from a hospitalized teenager in Vancouver has mutations in key areas that could help the virus spread more easily in humans, scientists say. There is no indication that ...
Global heating and its associated environmental disruptions are increasingly affecting human societies through deteriorating public health, economic instability, and social dislocation. Rising ...
Penn State provides funding as a founding partner of The Conversation US. Australian National University and Adelaide University provide funding as members of The Conversation AU. Humans may be just ...
The use of ancient DNA, including samples of human remains around 45,000 years old, has shed light on a previously unknown aspect of human evolution. The use of ancient DNA, including samples of human ...
There is no evolutionary signal suggesting that these viruses were being “pre-adapted” for humans prior to their outbreaks. Instead, measurable changes in selection typically appeared only after ...
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