Feature Channels: Evolution and Darwin

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Released: 7-Jun-2011 11:00 PM EDT
What Darwin Didn't Know is in "The Evidence for Evolution"
University of Utah

In “The Evidence for Evolution,” University of Utah anthropologist Alan R. Rogers tries to lay to rest persistent and inaccurate anti-evolution arguments with scientific evidence that was unavailable in Charles Darwin’s day.

Released: 2-Jun-2011 12:25 PM EDT
In 'First Life,' Biochemist David Deamer Explores How Life Began
University of California, Santa Cruz

In his new book, 'First Life,' biochemist David Deamer presents an engaging and accessible overview of research into life's beginnings and a personal history of his work in this field.

Released: 31-May-2011 12:00 PM EDT
Black, White and Stinky: Explaining Bold Coloration in Skunks
University of Massachusetts Amherst

In the first analysis of how warning coloration evolved in carnivores, researchers explain why some species use bold coloration to warn predators that they risk being sprayed with stinky gas or getting into a vicious fight, while others do not. Results are in the current online issue of Evolution.

27-May-2011 11:30 AM EDT
Researchers Solve Mammoth Evolutionary Puzzle: the Woollies Weren’t Picky, Happy to Interbreed
McMaster University

A DNA-based study sheds new light on the complex evolutionary history of the woolly mammoth, suggesting it mated with a completely different and much larger species. The research, which appears in the BioMed Central’s open access journal Genome Biology, found the woolly mammoth, which lived in the cold climate of the Arctic tundra, interbred with the Columbian mammoth, which preferred the more temperate regions of North America and was some 25 per cent larger.

15-May-2011 11:00 PM EDT
Fighting: Is It Why We Walk Upright and Women Like Tall Men?
University of Utah

A University of Utah study shows that men hit hardest when they stand on two legs and punch downward, giving tall, upright males a fighting advantage. This may help explain why our ape-like human ancestors began walking upright and why women tend to prefer tall men.

16-May-2011 4:05 PM EDT
Errors in Protein Structure Sparked Evolution of Biological Complexity
University of Chicago Medical Center

A new comparison of proteins shared across species finds that complex organisms, including humans, have accumulated structural weaknesses that may have actually launched the long journey from microbe to man. The study, published in Nature, suggests that the random introduction of errors into proteins, rather than traditional natural selection, may have boosted the evolution of biological complexity.

10-May-2011 4:00 PM EDT
Darkness Stifles Reproduction of Surface-Dwelling Fish
North Carolina State University

There’s a reason to be afraid of the dark. Fish accustomed to living near the light of the water’s surface become proverbial “fish out of water” when they move to dark environments like caves, according to a study from North Carolina State University.

Released: 4-May-2011 3:00 AM EDT
Evolutionary Lessons for Wind Farm Efficiency
University of Adelaide

Evolution is providing the inspiration for University of Adelaide computer science research to find the best placement of turbines to increase wind farm productivity.

Released: 3-May-2011 9:00 AM EDT
New Research Explains Why More Species Live in the Amazon Rainforests
Stony Brook University

For more than two hundred years, the question of why there are more species in the tropics has been a biological enigma.

Released: 2-May-2011 10:35 AM EDT
Study Suggests That Successful Blueprints Are Recycled by Evolution
IMP - Research Institute of Molecular Pathology

A study by researchers in Austria and the US finds evidence that the different cell types that make up organs have arisen only once during the course of evolution. The programs to develop these cells have been passed on ever since. The study which is published online by Nature Genetics has been supported by the GEN-AU Programme of the Austrian Ministry for Science and Research.

28-Apr-2011 8:00 AM EDT
The Winners of Mass Extinction: with Predators Gone, Prey Thrives
University of Chicago Medical Center

In modern ecology, the removal or addition of a predator to an ecosystem can produce dramatic changes in the population of prey species. For the first time, scientists have observed the same dynamics in the fossil record, thanks to a mass extinction that decimated ocean life 360 million years ago.

Released: 26-Apr-2011 3:40 PM EDT
Siberian Hot Springs Reveal Ancient Ecology
University of Chicago

Exotic bacteria that do not rely on oxygen may have played an important role in determining the composition of Earth’s early atmosphere, according to a theory that UChicago researcher Albert Colman of a volcanic crater in Siberia.

11-Apr-2011 2:30 PM EDT
Birds Inherited Strong Sense of Smell from Dinosaurs
Ohio University Office of Research Communications

Birds are known more for their senses of vision and hearing than smell, but new research suggests that millions of years ago, the winged critters also boasted a better sense for scents.

Released: 6-Apr-2011 10:05 AM EDT
Researchers Resurrect Four-Billion-Year-Old Enzymes, Reveal Conditions of Early Life on Earth
Columbia Technology Ventures

A team of scientists from Columbia University, Georgia Institute of Technology and the University of Granada in Spain have successfully reconstructed active enzymes from four-billion-year-old extinct organisms. By measuring the properties of these enzymes, they could examine the conditions in which the extinct organisms lived. The results shed new light on how life has adapted to changes in the environment from ancient to modern Earth.

Released: 4-Apr-2011 4:55 PM EDT
In Fireflies, Flightless Females Lose Out on Gifts from Males
Tufts University

Research by Tufts biologists shows that wingless "stay-at-home" female fireflies get less support from their mates than females able to fly. Some male fireflies donate a "nuptial gift" to mates--sperm wrapped in a nutritious high-protein package. When a species' females lose the ability to fly, the males evolve to transfer only sperm, with no food gift.

Released: 4-Apr-2011 4:00 PM EDT
Protein Adaptation Shows Life on Early Earth Lived in a Hot, Acidic Environment
Georgia Institute of Technology, Research Communications

A new study reveals that a group of ancient enzymes adapted to substantial changes in ocean temperature and acidity during the last four billion years, providing evidence that life on Early Earth evolved from a much hotter, more acidic environment to the cooler, less acidic global environment today.

Released: 31-Mar-2011 2:00 PM EDT
Fossil Is Best Look Yet at an Ancestor of Buttercups
Indiana University

Scientists from the United States and China have discovered the first intact fossil of a mature eudicot, a type of flowering plant whose membership includes buttercups, apple trees, maple trees, dandelions and proteas. The 125 million-year-old find, described in this week's Nature, reveals a remarkably developed species.

Released: 31-Mar-2011 11:55 AM EDT
Civil Conversations Can Emerge from Contentious Topics
University of Alabama at Birmingham

UAB professor uses evolution talks to teach civil discourse.

14-Mar-2011 7:00 AM EDT
‘Fly Tree of Life’ Mapped
North Carolina State University

Calling it the “new periodic table for flies,” researchers at North Carolina State University and collaborators across the globe have mapped the evolutionary history of flies, providing a framework for further comparative studies on the insects that comprise more than 10 percent of all life on Earth.

Released: 10-Mar-2011 1:00 PM EST
Human-Monkey Aging Patterns Not as Different as Believed
Iowa State University

Humans had been believed to be different from other primates in the measure of how mortality increases with advancing adult age, but this research shows that is not the case.



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