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Homebound termites answer 150-year-old evolution question
Staying at home may have given the very first termite youngsters the best opportunity to rule the colony when their parents were killed by their neighbors. view more (2009-10-06)
Scientists uncover the source of an almost 2 billion year delay in animal evolution
A deficiency of oxygen and the heavy metal molybdenum in the ancient deep ocean may have delayed the evolution of animal life on Earth for nearly two billion years. view more (2008-03-27)
Geneticists at the American Museum of Natural History trace the evolution of St. Louis encephalitis
Before West Nile virus arrived in this country, we had (and still have) a home-grown relative of this pathogen. An epidemic of unknown origin exploded around St. Louis, Missouri in the autumn of 1933, a disease that is now known to be transmitted by mosquitoes from birds to people. view more (2008-05-16)
Why the Amazon rainforest is so rich in species
Tropical areas of south and central America such as the Amazon rainforest are home to some 7500 species of butterfly compared with only around 65 species in Britain. view more (2005-12-06)
How did cactuses evolve?
In a groundbreaking new study in the June issue of American Naturalist, Erika J. Edwards (Yale University and University of California, Santa Barbara) and Michael J. Donoghue (Yale University) explore how leafy, "normal" plants evolved into the leafless succulent cactus. view more (2006-05-15)
Cancer researchers found a new mechanism potentially explaining evolution of signalling pathways
Cancer researchers at the University of Helsinki, in trying to find a novel tumor suppressor gene, instead found an important evolutionary change that occurred in a key developmental signalling pathway. view more (2006-02-08)
Evolutionary battle scars' identify enhanced antiviral activity
Rapid evolution of a protein produced by an immunity gene is associated with increased antiviral activity in humans, a finding that suggests evolutionary biology and virology together can accelerate the discovery of viral-defense mechanisms. view more (2008-01-25)
The aye-ayes have it: The preservation of color vision in a creature of the night
A quest to gain a more complete picture of color vision evolution has led Biodesign Institute researcher Brian Verrelli to an up-close, genetic encounter with one of the world's most rare and bizarre-looking primates. view more (2007-09-05)
University of Chicago study overturns conventional theory in evolution
New data suggest that the accumulation of genetic changes is not solely determined by natural selection. A study by University of Chicago researchers contradicts conventional theory by showing that the percentage of mutations accepted in evolution is also strongly swayed by the speed at which new mutations arrive at a gene: the faster the speed of... view more... (2005-06-07)
Revealing the evolutionary history of threatened sea turtles
It's confirmed: Even though flatback turtles dine on fish, shrimp, and mollusks, they are closely related to primarily herbivorous green sea turtles. view more (2008-10-16)
Darwin in a test tube
As described in an article published this week in an advance, online edition of the journal Proceedings of the National Academy of Sciences (PNAS), the work demonstrates some of the classic principles of evolution. view more (2009-04-30)
Finding an answer to Darwin's Dilemma
The sudden appearance of large animal fossils more than 500 million years ago - a problem that perplexed even Charles Darwin and is commonly known as "Darwin's Dilemma" - may be due to a huge increase of oxygen in the world's oceans, says Queen's paleontologist Guy Narbonne, an expert in the early evolution of animals and their... view more... (2006-12-11)
New study of gene evolution could lead to better understanding of neurodegenerative disease
Genetic evolution is strongly shaped by genes' efforts to prevent or tolerate errors in the production of proteins, scientists at The University of Texas at Austin and Harvard University have found. view more (2008-07-25)
Evolution follows few of the possible paths to antibiotic resistance
Darwinian evolution follows very few of the available mutational pathways to attain fitter proteins, researchers at Harvard University have found in a study of a gene whose mutant form increases bacterial resistance to a widely prescribed antibiotic by a factor of roughly 100,000. view more (2006-04-12)
Fossilised Embryos - 500 Million Years Old
Evidence from fossilised embryos of worm-like creatures that lived 500 million years ago shows that embryos developed then in much the same way as their living relatives do today. The implications of this remarkable discovery, reported in this week's issue of Nature, is that embryological processes that occur today must have been established very... view more... (2004-01-12)
Snail venoms reflect reduced competition
A study of venomous snails on remote Pacific islands reveals genetic underpinnings of an ecological phenomenon that has fascinated scientists since Darwin. view more (2009-05-21)
Optimum running speed is stride toward understanding human body form
Runners, listen up: If your body is telling you that your pace feels a little too fast or a little too slow, it may be right. view more (2009-03-20)
Tentacles of venom: new study reveals all octopuses are venomous
Once thought to be only the realm of the blue-ringed octopus, researchers have now shown that all octopuses and cuttlefish, and some squid are venomous. The work indicates that they all share a common, ancient venomous ancestor and highlights new avenues for drug discovery. view more (2009-04-15)
Study identifies energy efficiency as reason for evolution of upright walking
A new study provides support for the hypothesis that walking on two legs, or bipedalism, evolved because it used less energy than quadrupedal knucklewalking. view more (2007-07-17)
Why cloning could wipe out species
Cloning on a grand scale could spell the end of species as they become progressively nastier, warn researchers at the University of Sussex. Evolutionary biologist Dr Joel Peck has produced a mathematical model that suggests that asexual reproduction -in which organisms are reproduced from a single parent without fertilisation - leads to... view more... (2004-04-26)
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