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Scientists Pin Down When Earth’s Crust Cracked, Then Came to Life
New data indicating that Earth’s surface broke up about 3.2 billion years ago helps clarify how plate tectonics drove the evolution of complex life. In 2016, the geochemists Jonas Tusch...
Scientists Catch Jumping Genes Rewiring Genomes
...of sites throughout the genome simultaneously; it’s hard to picture how natural selection enables that to happen. The answer may hold the key to understanding how complex evolutionary novelties such...
DNA Jumps Between Animal Species. No One Knows How Often.
...an evolutionary genomicist at Reed College in Portland, Oregon, believes these cases of horizontal transfer still have “a pretty big wow factor” even among scientists, “because the conventional wisdom for...
Single Cells Evolve Large Multicellular Forms in Just Two Years
...his colleagues report that over the course of nearly two years of evolution, they have induced unicellular yeasts to grow into multicellular clusters of immense size, going from microscopic to...
How a DNA ‘Parasite’ May Have Fragmented Our Genes
...evolution of genomic complexity. One example involves a theory of intron evolution developed by Michael Lynch of Arizona State University in 2002. Models suggest that in species with small breeding...
How Did Altruism Evolve?
...classical notion of evolutionary biology where everything is just about selfish survival. I think you’ve explained well why there would be evolutionary pressure in the longer term to have this...
The Hidden World of Electrostatic Ecology
...evolution has fine-tuned this electric sense. Electrostatics may turn out to be an evolutionary force in small creatures’ survival that helps them find food, migrate and infest other living things....
The Year in Biology
...molecular changes manifest in evolution and everyday biology. Biologists Meet the AI Revolution In 2024, hardly a week could go by without some big new paper related to Google...
Scientists Re-Create the Microbial Dance That Sparked Complex Life
Evolution was fueled by endosymbiosis, cellular alliances in which one microbe makes a permanent home inside another. For the first time, biologists made it happen in the lab. Far from...