Research on bird beaks delivers powerful insights on variation
Evolutionary biologists have long held up songbirds, particularly the Galapagos finches first described by Charles Darwin, as an example of natural selection at work. In order to exploit different environments ...
Is a new form of life really so alien?
The idea of discovering a new form of life has not only excited astronomers and astrobiologists for decades, but also the wider public. The notion that we are the only example of a successful life form in the galaxy has, ...
Whether tweets live or die depends more on network, competition for attention than message or user influence
On the global social media stage, it's not so much the message but rather network structure and competition for attention that determine whether a meme becomes popular and shows staying power or whether it ...
Ego City: Cities organized like human brains
(PhysOrg.com) -- Cities are organized like brains, and the evolution of cities mirrors the evolution of human and animal brains, according to a new study by researchers at Rensselaer Polytechnic Institute.
Social scientists build case for 'survival of the kindest'
(PhysOrg.com) -- Researchers at the University of California, Berkeley, are challenging long-held beliefs that human beings are wired to be selfish. In a wide range of studies, social scientists are amassing ...
Genetic mutations that boost individual's adaptability have greater chances of getting through to X chromosomes
One of the most important questions for evolution researchers is how a species develops and adapts during the course of time. An analysis of the genes of twelve chimpanzees has now demonstrated that the chimpanzee X chromosome ...
Small family size increases the wealth of descendants but reduces evolutionary success
Scientists have taken a step closer to solving one of life's mysteries – why family size generally falls as societies become richer.
Building blocks of life came from deep Earth
The rise of the first complex life depended on vital metals brought up to the Earth's surface from far below in vast granite deposits, a new study argues.
New approach precisely tracks evolution's footprints in the human genome
(PhysOrg.com) -- Fossils may provide tantalizing clues to human history but they also lack some vital information, such as revealing which pieces of human DNA have been favored by evolution because they confer ...
When fairness prevails: Research shows how uncertainty affects behavior
Philosophers and scientists have long puzzled over the origins of fairness. Work by a group of Harvard researchers offers some clues, with the discovery that uncertainty is critical in the concept's development.
'Toothless' rat discovered on the island of Sulawesi
(Phys.org)—A McMaster researcher has discovered a nearly toothless shrew rat on the Indonesian island of Sulawesi.
Insects a prime driver in plant evolution and diversity, study finds
Take a good look around on your next nature hike. Not only are you experiencing the wonders of the outdoors – you're probably also witnessing evolution in action.
Researchers show gene controlling coat color in mice mutated nine times, results shed new light on how evolution works
For deer mice living in the Nebraska Sandhills, color can literally be the difference between life and death.
Why sticking around is sometimes the better choice for males
Researchers from Lund University and the University of Oxford have been able to provide one answer as to why males in many species still provide paternal care, even when their offspring may not belong to ...