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Latest Evolution Stories

Evolutionary Formula For Large Body Size
2013-06-25 15:01:16

Brett Smith for redOrbit.com - Your Universe Online A team of international scientists has found a connection between mammals’ body size and evolutionary development, according to a new report in the journal Proceedings of the Royal Society B. The study examined the maximum size of mammalian species – including whales, primates and rodents – since the last ice age and found the weight of a baby mammal relative to its adult body mass is a key factor in determining whether a mammal...

2013-06-21 13:05:27

As past extinctions show, groups must continually adapt and evolve or they disappear The death of individual species is not the only concern for biologists worried about groups of animals, such as frogs or the "big cats," going extinct. University of California, Berkeley, researchers have found that lack of new emerging species also contributes to extinction. "Virtually no biologist thinks about the failure to originate as being a major factor in the long term causes of extinction,"...

Females Choose Biological Fitness Over Other Traits In Mating Game
2013-06-20 10:46:19

National Institute for Mathematical and Biological Synthesis When a new species emerges following adaptive changes to its local environment, the process of choosing a mate can help protect the new species' genetic identity and increase the likelihood of its survival. But of the many observable traits in a potential mate, which particular traits does a female tend to prefer? A new study from the National Institute for Mathematical and Biological Synthesis finds that a female's mating...

Self-fertilizing Plants Play Part In Their Own Death
2013-06-10 10:28:56

University of Toronto Many plants are self-fertilizing, meaning they act as both mother and father to their own seeds. This strategy — known as selfing — guarantees reproduction but, over time, leads to reduced diversity and the accumulation of harmful mutations. A new study published in the scientific journal Nature Genetics shows that these negative consequences are apparent across a selfing plant's genome, and can arise more rapidly than previously thought. In the study,...

New Genes Essential To Life
2013-06-07 11:53:53

Brett Smith for redOrbit.com - Your Universe Online Some genes within an organism´s DNA have been there for a billion years and can be traced back through earlier species, while other genes are newly acquired and only a few million years old. According to a new report in the journal Science, these newly acquired genes can quickly become a major part of an organism´s genetic machinery and even essential for life. In the study, a team of American and German researchers were able...

Evolutionary History Of Cancer-related Gene Tracked By CNIO Study
2013-06-06 20:59:35

Centro Nacional de Investigaciones Oncologicas (CNIO) The study reveals how a genetic duplication that occurred millions of years ago encouraged the evolution of the ASF1b gene, involved in cancer development How and when evolution generates diversity or gives form to proteins, living beings' functional building blocks, are essential questions that still surround the theory of evolution. In humans, the majority of genes have emerged via genetic duplication, a strategy in which a gene...

2013-06-06 11:49:18

Efforts to restore sturgeon in the Great Lakes region have received a lot of attention in recent years, and many of the news stories note that the prehistoric-looking fish are "living fossils" virtually unchanged for millions of years. But a new study by University of Michigan researchers and their colleagues reveals that in at least one measure of evolutionary change–changes in body size over time–sturgeon have been one of the fastest-evolving fish on the planet. "Sturgeon...

Discovering Why And How Swarming Evolved
2013-06-05 14:46:40

Michigan State University Many animals — from locusts to fish — live in groups and swarm, but scientists aren't sure why or how this behavior evolved. Now a multidisciplinary team of Michigan State University scientists has used a model system to show for the first time that predator confusion can make prey evolve swarming behavior. Swarming allows groups of animals to accomplish tasks that they can't do alone, such as defending themselves from a much larger predator....

Top 10 New Species Announced By Scientists
2013-05-23 14:09:02

Arizona State University Researchers call for massive mission: discover 10 million species in 50 years An amazing glow-in-the-dark cockroach, a harp-shaped carnivorous sponge and the smallest vertebrate on Earth are just three of the newly discovered top 10 species selected by the International Institute for Species Exploration at Arizona State University. A global committee of taxonomists – scientists responsible for species exploration and classification – announced its...

2013-05-22 10:17:41

Rice computational study tracks E. coli cells´ regulatory mechanisms Environment is not the only factor in shaping regulatory patterns – and it might not even be the primary factor, according to a new Rice University study that looks at how cells´ protein networks relate to a bacteria´s genome. The Rice lab of computer scientist Luay Nakhleh reported in the Proceedings of the National Academy of Sciences that when environmental factors are eliminated from an...


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
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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