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Under Pressure, Does Evolution Evolve?
...bacteria could somehow direct their evolution, “choosing which mutations will occur,” the authors wrote — a modern molecular biologist’s version of Lamarckian theory. Susan Rosenberg, a biologist at Baylor College...
Elusive Form of Evolution Seen in Spiders
...puzzle to evolutionary biologists. According to ordinary Darwinian natural selection, only the fittest individuals will pass on their genes. But if that’s the case, why do tangle-web spiders act in...
A Surprise for Evolution in Giant Tree of Life
...reason scientists are skeptical is that Hedges’ clocklike pattern conflicts with the traditional picture of how evolution unfolds. “The classic view of evolution is that it happens in fits and...
Faster Evolution on a Warmer Earth
...mutations — errors in the genetic code. These errors provide the raw material for natural selection and evolution. Sometimes simple chance produces a helpful mutation — one that enables its...
Tracking the Evolution of Cancer, Cell by Cell
...signatures of individual cancer cells, paired with tools from evolutionary biology, scientists are beginning to track cancer’s evolution at a level of detail that could help them pinpoint the mechanisms...
New Lizard Shows Evolution’s Predictability
The anole lizards that dot many islands of the Caribbean are a natural evolutionary experiment. Many species of anole exist, and, in a striking pattern, they seem to have evolved...
Should Evolution Treat Our Microbes as Part of Us?
...an autocracy of identical cells and more a coalition of multitudes, how can we explain their evolution? Some biologists are calling for a radical upgrade of evolutionary theory, arguing that...
Neil Shubin on Tiktaalik, Ballistic Tongues and Evolution
...totally agree with the popular idea in evolutionary biology that goes by the name of contingency. Contingency is the idea that accidents and randomness dominate the story of evolution. Like...
Seeing Emergent Physics Behind Evolution
...of biology? God, no. There’s no unified theory of biology. Evolution is the nearest thing you’re going to get to that. Biology is a product of evolution; there aren’t exceptions...