News
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- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Animals
Compared with rodents, bat species carry more viruses
Viruses that can jump from animals to people may find the flying mammals a fine place to lurk.
- Life
Inflammation feeds E. coli
Inflammation, normally a defense against microbes, may become counterproductive in the gut by feeding disease-causing bacteria.
