Last universal common ancestor more complex than previously thought

Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of molecular parts, a chemical ...

The composition of gut bacteria almost recovers after antibiotics

The use of antibiotics has long been linked to deprivation of gut bacteria. Now, a new study from University of Copenhagen shows that the composition and function of gut bacteria can recover after antibiotic treatment in ...

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