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Latest Evolution Stories

flatwing cricket
2014-06-01 02:30:15

Cell Press For most of us, crickets are probably most recognizable by the distinctive chirping sounds males make with their wings to lure females. But some crickets living on the islands of Hawaii have effectively lost their instruments and don't make their music anymore. Now researchers report in the Cell Press journal Current Biology on May 29 that crickets living on different islands quieted their wings in different ways at almost the same time. "There is more than one way to silence...

2014-05-27 11:56:22

University of Massachusetts at Amherst A new study of how biodiversity arises shows how a mutation in a single gene during development can lead to different consequences not only in jaw shape, but how this leads to different feeding strategies to exploit different ecological niches A new study of how biodiversity arises, by evolutionary biologists at the University of Massachusetts Amherst, shows how a mutation in a single gene during development can lead to different consequences not...

2014-05-26 10:50:10

KU Leuven A team of Belgian biologists led by researchers at KU Leuven has provided the first genetic evidence that rapid evolution can help non-native plant species spread in new environments. Using samples of centuries-old herbaria and DNA analysis, the researchers reconstructed the genetic adaptations undergone by the Pyrenean rocket prior to its rapid spread in Belgium. The Pyrenean rocket (Sisymbrium austriacum subsp. Chrysanthum) is a plant that grows in the mountains of southern...

Polar Bear Genome Provides Clues To Rapid Evolution To High Fat Diet
2014-05-09 05:24:37

redOrbit Staff & Wire Reports - Your Universe Online Mutations in genes involved in cardiovascular function allowed polar bears to rapidly evolve the ability to consume a fatty, blubber-rich diet without developing high rates of heart disease, an international team of scientists reported this week in the journal Cell. Moreover, the study revealed that polar bears diverged from brown bears less than 500,000 years ago – much more recently than estimates based on previous genomic...

Connecting Genes To Hominin Teeth Shows Evidence Of Natural Selection
2014-05-06 03:18:44

Duke University Along with our big brains and upright posture, thick tooth enamel is one of the features that distinguishes our genus, Homo, from our primate relatives and forebears. A new study, published May 5 in the Journal of Human Evolution, offers insight into how evolution shaped our teeth, one gene at a time. By comparing the human genome with those of five other primate species, a team of geneticists and evolutionary anthropologists at Duke University has identified two...

2014-05-06 15:07:45

Populations of predators and their prey usually follow predictable cycles. When the number of prey increases, perhaps as their food supply becomes more abundant, predator populations also grow. When the predator population becomes too large, however, the prey population often plummets, leaving too little food for the predators, whose population also then crashes. This canonical view of predator-prey relationships was first identified by mathematical biologists Alfred Lotka and Vito...

2014-04-30 12:14:38

Viruses and other external threats drive evolution of robust architectures The robust defenses that yeast cells have evolved to protect themselves from environmental threats hold lessons that can be used to design computer networks and analyze how secure they are, say computer scientists at Carnegie Mellon University. Environmental "noise" is a key evolutionary pressure that shapes the interconnections within cells, as well as those of neural networks and bacterial/ecological networks,...

2014-04-30 12:05:19

This Week in Molecular Biology and Evolution Take a muscle cell, modify it over millions of years, and you end up with an exciting and literally shocking evolutionary result: the electric fish. Electric fish have evolved several times in varying levels of complexity. Two groups of electric fish, one in Africa (Mormyroids) and one in South America (Gymnotiforms), have independently evolved sophisticated communication systems using these cells. By emitting and sensing weak electrical...

Rainbow Trout Genome Sequenced By International Team Of Researchers
2014-04-22 14:58:22

By Eric Sorensen, Washington State University Using fish bred at Washington State University, an international team of researchers has mapped the genetic profile of the rainbow trout, a versatile salmonid whose relatively recent genetic history opens a window into how vertebrates evolve. The 30-person team, led by Yann Guiguen of the French National Institute for Agricultural Research, reports its findings this week in Nature Communications. Recent doubling enables study The...

2014-04-22 10:10:51

Manure from dairy cows, which is commonly used as a farm soil fertilizer, contains a surprising number of newly identified antibiotic resistance genes from the cows' gut bacteria. The findings, reported in mBio® the online open-access journal of the American Society for Microbiology, hints that cow manure is a potential source of new types of antibiotic resistance genes that transfer to bacteria in the soils where food is grown. Thousands of antibiotic resistance (AR) genes have already...


Latest Evolution Reference Libraries

Paleontology
2014-01-12 00:00:00

Paleontology or Palaeontology is the scientific study of prehistoric life, including the study of fossils to determine the organisms evolution and interactions with each other and their environments. Paleontological observations have been documented as far back as 5th century BC. The science became established in the 18th century as a result of Georges Cuvier’s work on comparative anatomy, and it developed quickly within the 19th century. The term itself comes from Greek palaios, meaning...

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Word of the Day
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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