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Articles on Evolution

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Red mitochondria in airway cells become coated with green SARS-COV-2 proteins after viral infection: Researchers discovered that the virus that causes COVID-19 damages lungs by attacking mitochondria. (Stephen Archer)

How COVID-19 damages lungs: The virus attacks mitochondria, continuing an ancient battle that began in the primordial soup

COVID-19 causes lung injury and lowers oxygen levels in patients because the SARS-CoV-2 virus attacks cells’ mitochondria. This attack is a throwback to a primitive war between viruses and bacteria.
Legendrea loyezae, a very rare ciliate that lives in oxygen-free sediments of lakes. James Weiss

How we found microbes rarer than a ticket to the Moon

Microbes are so tiny humans can’t see them without special equipment. But the discovery of 20 new species will help scientists map the evolutionary tree of life.
Extremes of the colour gradient of the Eastern San Antonio frog (Hyla orientalis). On the left, a specimen captured in Chernobyl inside the high contamination zone; on the right, a specimen captured outside the Exclusion Zone. Germán Orizaola/Pablo Burraco

Chernobyl black frogs reveal evolution in action

Research on Chernobyl frogs has shown that the ionising radiation caused by the accident triggered a process of natural selection among these animals.
The gut microbiome may also play a role in personalized medicine. nopparit/iStock via Getty Images Plus

Humans evolved with their microbiomes – like genes, your gut microbes pass from one generation to the next

As early modern humans spread across the globe, their gut microbes genetically changed with them. Understanding the origins of gut microbes could improve understanding of their role in human health.

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