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Cephalopods such as octopus and squid evolutionarily diverged from mollusks like slugs and snails. These animals have elaborate compact nervous systems located within specialized arm appendages, which...
Zeroing in on the origins of Earth’s “single most important evolutionary innovation”（图）
地球 进化创新 含氧光合作用
2023/6/21
Some time in Earth’s early history, the planet took a turn toward habitability when a group of enterprising microbes known as cyanobacteria evolved oxygenic photosynthesis — the ability to turn light ...
300-million-year-old fish resembles a sturgeon but took a different evolutionary path（图）
300-million-year-old resembles sturgeon different evolutionary path
2020/7/3
Sturgeon, long-lived, bottom-dwelling fish, are often described as living fossils. Their form has remained relatively constant, despite hundreds of millions of years of evolution.In a National Sc...
Study reveals evolutionary clues to honeybees' social complexity（图）
evolutionary clues honeybees social complexity
2020/2/20
The complex social life of honeybees -- with their queens and workers cooperating to produce honey -- is deeply entrenched in the public's imagination. But the majority of the world's more than 20,000...
Scientists show 'Red Queen' evolutionary principle at work in microbes in waters off Southern California（图）
Scientists Red Queen evolutionary principl microbes waters off Southern California
2019/12/20
In the waves off Southern California, germ warfare occurs in a struggle as old as life itself. That's where University of Southern California marine biologists recently completed a comprehensive new s...
Pre-life building blocks spontaneously align in evolutionary experiment（图）
Pre-life building blocks spontaneously align evolutionary experiment
2019/10/21
When Earth was a lifeless planet about 4 billion years ago, chemical components came together in tiny molecular chains that would later evolve into proteins, which are crucial life building blocks. A ...
Colorful bird feathers offer evolutionary clues（图）
Colorful bird feathers evolutionary clues
2019/11/22
Researchers at the University of Arizona (UA) and other institutions have discovered a new twist on the idea that evolution is driven by species interactions in a community. The results are published ...
Colorful bird feathers offer evolutionary clues（图）
Colorful bird feathers evolutionary clues
2019/11/22
Researchers at the University of Arizona (UA) and other institutions have discovered a new twist on the idea that evolution is driven by species interactions in a community. The results are published ...
Pumpkin genomes sequenced revealing uncommon evolutionary history（图）
Pumpkin genomes sequenced evolutionary history
2017/11/23
For some, pumpkins conjure carved Halloween decorations, but for many people around the world, these gourds provide nutrition. Scientists at Boyce Thompson Institute (BTI) and the National Engineering...
Why it’s difficult to predict evolutionary fate of a new trait（图）
evolutionary fate new trait
2017/9/20
The phrase “survival of the fittest” makes the principle of evolution by natural selection easy to understand — individuals with a trait that adapts them well to their circumstances are more likely to...
When a male fruit fly gets aggressive, he rears up on his back four legs and batters his foe with his front pair. Neither fly seems particularly damaged by the encounter, but their subsequent actions ...
Changing Views of Evolutionary Factors at Work on Earliest Mammals
Changing Views Evolutionary Factors Earliest Mammals
2016/11/29
Using 3D-printed replicas of 200-million-year-old mammal teeth and polymers that mimic insect prey, scientists at the University of Massachusetts Amherst this week provide the first laboratory-tested ...
Living things have long used a previously unrecognized method for diversifying and evolving. This strategy, as reported this week in Science, could account for some of the variation seen across s...
The brains of wild cats don’t necessarily respond to the same evolutionary pressures as those of their fellow mammals, humans and primates, indicates a surprising new study led by a Michigan State Uni...
Study:At molecular level,evolutionary change is unpredictable
molecular level evolutionary change unpredictable
2016/11/4
Using modern molecular tools and fieldwork, University of Nebraska-Lincoln biologist Jay Storz and colleagues have demonstrated for the first time that different species can take different genetic pat...