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Ancient Genes for Symbiosis Hint at Mitochondria’s Origins
...mitochondria, setting the stage for the revolution to come. Lionel Guy, an evolutionary microbiologist at Uppsala University in Sweden and an author of the new paper, began sequencing bacteria of...
Why Is It So Hard to Define a Species?
...Yeah, well, Darwin was actually a very important figure in the development of a modern species concept because he proposed evolution, and specifically evolution by natural selection. He kind of...
All Life on Earth Today Descended From a Single Cell. Meet LUCA.
...resembling modern microbes remarkably quickly, he said. “That’s really exciting.” “Our work suggests that those early steps of evolution weren’t hard; they’re pretty easy,” said co-author Phil Donoghue, an evolutionary...
Intelligence Evolved at Least Twice in Vertebrate Animals
...that support vertebrate intelligence evolved independently in birds and mammals. It’s hard to track down which path evolution took, given that any trace of the ancient ancestor’s actual brain vanished...
Shrinking Bat DNA and Elastic Genomes
...an evolutionary biologist at the Royal Botanic Gardens, Kew, in England. Her reaction mimicked the befuddlement of countless anthropocentric minds who have puzzled over this discrepancy since scientists began comparing...
Simple Bacteria Offer Clues to the Origins of Photosynthesis
...State University have extrapolated what the earliest version of photosynthesis might have looked like nearly 3.5 billion years ago. If they are right, their findings could rewrite the evolutionary history...
Icefish Study Adds Another Color to the Story of Blood
The rainbow of pigments that animals use for blood illustrates a central truth about evolution. In February, a genomics study appearing in Nature Ecology & Evolution drew attention to the...
Black-Hole Hunter Takes Aim at Einstein
...hole has been identified, but her explorations are far from over. Theories of galactic evolution suggest that the Milky Way’s center should have lots of old stars and almost no...
New Clues About ‘Ambigram’ Viruses With Strange Reversible Genes
...California point to an unexpected answer. The ambigrammatic property of narnaviruses may be a clever mechanism of self-preservation, one that could significantly expand the picture of viral evolution and suggest...