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Can Microbes Encourage Altruism?
...part in research on how cooperation among members of a population can affect the evolution of new traits. The team came to feel that the classical explanations for the evolution...
Researchers Rethink the Ancestry of Complex Cells
...details of later ones and inferring their evolutionary relationships. Right now is “an incredibly exciting time” for such research, said Michelle Leger, a postdoctoral fellow at the Institute of Evolutionary...
How Jurassic Plankton Stole Control of the Ocean’s Chemistry
...changed when certain tiny marine creatures emerged in the Jurassic — and evolution in the ocean was never the same again. A Plankton Revolution About 250 million years ago, at...
Why Sex? Biologists Find New Explanations.
...focus on the future generations,” said Caitlin McDonough, who studies the evolution of reproductive systems at Syracuse University. McDonough’s work on the evolution of sexual behaviors has found evidence that...
Scientists Find Vital Genes Evolving in Genome’s Junkyard
...evolutionary time — evolving only very slowly if at all, because changing or dying would lead to the death of the organism. Hundreds of millions of years of evolution separate...
Sponge Genes Hint at the Origins of Neurons and Other Cells
...but also have many of the same genes. Sponges are among the earliest branching lineages on the evolutionary tree of animal life; their simple bodies don’t even have a pattern...
Tiny Tweaks to Neurons Can Rewire Animal Motion
Altering a protein in the neurons that coordinate a rattlesnake’s movement made a slow slither neuron more like a speedy rattle neuron, showing one way evolution can generate new ways...
Genetic Struggles Within Cells May Create New Species
...other,” said Elina Immonen, an evolutionary geneticist and researcher at Uppsala University. “Males and females also might have different evolutionary interests.” The mismatch of evolutionary forces on mitochondrial and nuclear...
Why Did The Universe Begin?
...are pretty rare. The explanation is that in between the ground zero level of physics and the advanced sort of life level, there are many layers of evolution. Many improbabilities,...