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Shell-breaking crabs lived 20 million years earlier than thought 
While waiting for colleagues at a small natural history museum in the state of Chiapas, Mexico last year, Cornell paleontologist Greg Dietl chanced upon a discovery that has helped rewrite the evolutionary history of crabs and the shelled mollusks upon which they preyed.
While waiting for colleagues at a small natural history museum in the state of Chiapas, Mexico last year, Cornell paleontologist Greg Dietl chanced upon a discovery that has helped rewrite the evolutionary history of crabs and the shelled mollusks upon which they preyed.
Evolution
Source: EurekAlert
Posted on: Tuesday, Apr 22, 2008, 5:04pm
Rating: | Views: 1577 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 22, 2008, 5:04pm
Rating: | Views: 1577 | Comments: 0
Lizards Rapidly Evolve After Introduction to Island
Italian wall lizards introduced to a tiny island off the coast of Croatia are evolving in ways that would normally take millions of years to play out, new research shows.
Italian wall lizards introduced to a tiny island off the coast of Croatia are evolving in ways that would normally take millions of years to play out, new research shows.
Evolution
Source: National Geographic
Posted on: Tuesday, Apr 22, 2008, 12:22pm
Rating: | Views: 1259 | Comments: 0
Source: National Geographic
Posted on: Tuesday, Apr 22, 2008, 12:22pm
Rating: | Views: 1259 | Comments: 0
Evolution exhibit shows why nobody's perfect
A new exhibit at the University of Pennsylvania about human evolution gives a new meaning to the expression “nobody’s perfect.”
A new exhibit at the University of Pennsylvania about human evolution gives a new meaning to the expression “nobody’s perfect.”
Phytoplankton responding to climate change
But the ocean organisms may not remove more carbon dioxide from the air.
But the ocean organisms may not remove more carbon dioxide from the air.
Darwin's private papers get Internet launch
The first draft of Charles Darwin's "On The Origin Of Species" is among a wealth of papers belonging to the intensely private man who changed science being published on the Internet on Thursday for the first time.
The first draft of Charles Darwin's "On The Origin Of Species" is among a wealth of papers belonging to the intensely private man who changed science being published on the Internet on Thursday for the first time.
Evolution
Source: Reuters
Posted on: Thursday, Apr 17, 2008, 8:57am
Rating: | Views: 1194 | Comments: 0
Source: Reuters
Posted on: Thursday, Apr 17, 2008, 8:57am
Rating: | Views: 1194 | Comments: 0
Females That Change Color Don't Always Have Sex on Their Minds
Brightly colored males are looking for a mate, but females are just looking to survive
Brightly colored males are looking for a mate, but females are just looking to survive
Evolution
Source: Science
Posted on: Thursday, Apr 17, 2008, 8:57am
Rating: | Views: 1531 | Comments: 0
Source: Science
Posted on: Thursday, Apr 17, 2008, 8:57am
Rating: | Views: 1531 | Comments: 0
Slowly-developing primates definitely not dim-witted
Some primates have evolved big brains because their extra brainpower helps them live and reproduce longer, an advantage that outweighs the demands of extra years of growth and development they spend reaching adulthood, anthropologists from Duke University and the University of Zurich have concluded in a new study.
Some primates have evolved big brains because their extra brainpower helps them live and reproduce longer, an advantage that outweighs the demands of extra years of growth and development they spend reaching adulthood, anthropologists from Duke University and the University of Zurich have concluded in a new study.
Evolution
Source: EurekAlert
Posted on: Wednesday, Apr 16, 2008, 2:32pm
Rating: | Views: 1149 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 16, 2008, 2:32pm
Rating: | Views: 1149 | Comments: 0
Scientists discover the travel patterns of seasonal flu
Outbreaks of the most common type of influenza virus, A (H3N2), are seeded by viruses that originate in East and Southeast Asia and migrate around the world, new research has found. This discovery may help to further improve flu vaccines and make the evolution of the virus more predictable.
Outbreaks of the most common type of influenza virus, A (H3N2), are seeded by viruses that originate in East and Southeast Asia and migrate around the world, new research has found. This discovery may help to further improve flu vaccines and make the evolution of the virus more predictable.
Epidemiology
Source: EurekAlert
Posted on: Wednesday, Apr 16, 2008, 2:32pm
Rating: | Views: 1195 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 16, 2008, 2:32pm
Rating: | Views: 1195 | Comments: 0
Dumbo didn't fly – he swam
Did elephants' trunks evolve to function as snorkels? This suggestion might be outlandish but new fossils make a strong case that extinct relatives of elephants were aquatic.
Did elephants' trunks evolve to function as snorkels? This suggestion might be outlandish but new fossils make a strong case that extinct relatives of elephants were aquatic.
Evolution
Source: New Scientist
Posted on: Tuesday, Apr 15, 2008, 9:17am
Rating: | Views: 1135 | Comments: 0
Source: New Scientist
Posted on: Tuesday, Apr 15, 2008, 9:17am
Rating: | Views: 1135 | Comments: 0
Clues to ancestral origin of placenta emerge in Stanford study
Researchers at the Stanford University School of Medicine have uncovered the first clues about the ancient origins of a mother's intricate lifeline to her unborn baby, the placenta, which delivers oxygen and nutrients critical to the baby's health.
Researchers at the Stanford University School of Medicine have uncovered the first clues about the ancient origins of a mother's intricate lifeline to her unborn baby, the placenta, which delivers oxygen and nutrients critical to the baby's health.
Evolution
Source: EurekAlert
Posted on: Monday, Apr 14, 2008, 1:08pm
Rating: | Views: 1157 | Comments: 0
Source: EurekAlert
Posted on: Monday, Apr 14, 2008, 1:08pm
Rating: | Views: 1157 | Comments: 0
Insects evolved radically different strategy to smell
Scientists find that insects use fast-acting ion channels to smell odors, a major break with the ideology of the field -- and evolution
Scientists find that insects use fast-acting ion channels to smell odors, a major break with the ideology of the field -- and evolution
Evolution
Source: EurekAlert
Posted on: Monday, Apr 14, 2008, 7:52am
Rating: | Views: 1229 | Comments: 0
Source: EurekAlert
Posted on: Monday, Apr 14, 2008, 7:52am
Rating: | Views: 1229 | Comments: 0
And the first animal on Earth was a...
A new study mapping the evolutionary history of animals indicates that Earth's first animal--a mysterious creature whose characteristics can only be inferred from fossils and studies of living animals--was probably significantly more complex than previously believed.
A new study mapping the evolutionary history of animals indicates that Earth's first animal--a mysterious creature whose characteristics can only be inferred from fossils and studies of living animals--was probably significantly more complex than previously believed.
Evolution
Source: EurekAlert
Posted on: Thursday, Apr 10, 2008, 2:42pm
Rating: | Views: 1160 | Comments: 0
Source: EurekAlert
Posted on: Thursday, Apr 10, 2008, 2:42pm
Rating: | Views: 1160 | Comments: 0
At home on a crab, with new evolutionary neighbors
The members of Drosophilidae, a family consisting of about 3000 species, are often referred to as fruit flies although most of the members feed on microbes. As microbes can be found growing on a wide range of substrates, fruit flies can accordingly also be found in a multitude of habitats.
The members of Drosophilidae, a family consisting of about 3000 species, are often referred to as fruit flies although most of the members feed on microbes. As microbes can be found growing on a wide range of substrates, fruit flies can accordingly also be found in a multitude of habitats.
Evolution
Source: EurekAlert
Posted on: Wednesday, Apr 09, 2008, 8:52am
Rating: | Views: 1149 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 09, 2008, 8:52am
Rating: | Views: 1149 | Comments: 0
Scientists find a fingerprint of evolution across the human genome
The Human Genome Project revealed that only a small fraction of the 3 billion “letter” DNA code actually instructs cells to manufacture proteins, the workhorses of most life processes. This has raised the question of what the remaining part of the human genome does. How much of the rest performs other biological functions, and how much is merely residue of prior genetic events"
The Human Genome Project revealed that only a small fraction of the 3 billion “letter” DNA code actually instructs cells to manufacture proteins, the workhorses of most life processes. This has raised the question of what the remaining part of the human genome does. How much of the rest performs other biological functions, and how much is merely residue of prior genetic events"
Genetics
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 3:29pm
Rating: | Views: 1160 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 3:29pm
Rating: | Views: 1160 | Comments: 0
Ancient DNA: reconstruction of the biological history of Aldaieta necropolis
A research team has reconstructed the history of the evolution of human population and answered questions about history, using DNA extracted from skeleton remains.
A research team has reconstructed the history of the evolution of human population and answered questions about history, using DNA extracted from skeleton remains.
Genetics
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 12:17pm
Rating: | Views: 1149 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 12:17pm
Rating: | Views: 1149 | Comments: 0
Double trouble with insecticide-resistant mosquitoes
Mosquitoes harbouring two insecticide-resistance genes have been found to survive unexpectedly well in an insecticide-free environment where carrying such genes would normally expected to be a burden.
Mosquitoes harbouring two insecticide-resistance genes have been found to survive unexpectedly well in an insecticide-free environment where carrying such genes would normally expected to be a burden.
Evolution
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 9:51am
Rating: | Views: 1140 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 9:51am
Rating: | Views: 1140 | Comments: 0
Evolution on the table top
The research article, by Brian Paegel and Gerald Joyce of The Scripps Research Institute, California, documents the automation of evolution: they have produced a computer-controlled system that can drive the evolution of improved RNA enzymes—biological catalysts—without human input. In the future, this “evolution-machine” could feature in the classroom as well as the lab.
The research article, by Brian Paegel and Gerald Joyce of The Scripps Research Institute, California, documents the automation of evolution: they have produced a computer-controlled system that can drive the evolution of improved RNA enzymes—biological catalysts—without human input. In the future, this “evolution-machine” could feature in the classroom as well as the lab.
Molecular Biology
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 9:51am
Rating: | Views: 1219 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 08, 2008, 9:51am
Rating: | Views: 1219 | Comments: 0
Quasars surprise XMM-Newton
XMM-Newton has been surprised by a rare type of galaxy, from which it has detected a higher number of X-rays than thought possible. The observation gives new insight into the powerful processes shaping galaxies during their formation and evolution.
XMM-Newton has been surprised by a rare type of galaxy, from which it has detected a higher number of X-rays than thought possible. The observation gives new insight into the powerful processes shaping galaxies during their formation and evolution.
Astronomy
Source: EurekAlert
Posted on: Monday, Apr 07, 2008, 9:29am
Rating: | Views: 1447 | Comments: 0
Source: EurekAlert
Posted on: Monday, Apr 07, 2008, 9:29am
Rating: | Views: 1447 | Comments: 0
Researchers find pre-Clovis human DNA
DNA from dried human excrement recovered from Oregon's Paisley Caves is the oldest found yet in the New World -- dating to 14,300 years ago, some 1,200 years before Clovis culture -- and provides apparent genetic ties to Siberia or Asia, according to an international team of 13 scientists.
DNA from dried human excrement recovered from Oregon's Paisley Caves is the oldest found yet in the New World -- dating to 14,300 years ago, some 1,200 years before Clovis culture -- and provides apparent genetic ties to Siberia or Asia, according to an international team of 13 scientists.
Evolution
Source: EurekAlert
Posted on: Thursday, Apr 03, 2008, 1:48pm
Rating: | Views: 1288 | Comments: 0
Source: EurekAlert
Posted on: Thursday, Apr 03, 2008, 1:48pm
Rating: | Views: 1288 | Comments: 0
Is DNA repair a substitute for sex?
Birds and bees may do it, but the microscopic animals called bdelloid rotifers seem to get along just fine without sex, thank you. What’s more, they have done so over millions of years of evolution, resulting in at least 370 species. These hardy creatures somehow escape the usual drawback of asexuality – extinction
Birds and bees may do it, but the microscopic animals called bdelloid rotifers seem to get along just fine without sex, thank you. What’s more, they have done so over millions of years of evolution, resulting in at least 370 species. These hardy creatures somehow escape the usual drawback of asexuality – extinction
Genetics
Source: EurekAlert
Posted on: Wednesday, Apr 02, 2008, 1:23pm
Rating: | Views: 1140 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 02, 2008, 1:23pm
Rating: | Views: 1140 | Comments: 0
Darwin told us so: researcher shows natural selection speeds up speciation
In the first experiment of its kind conducted in nature, a University of British Columbia evolutionary biologist has come up with strong evidence for one of Charles Darwin’s cornerstone ideas – adaptation to the environment accelerates the creation of new species.
In the first experiment of its kind conducted in nature, a University of British Columbia evolutionary biologist has come up with strong evidence for one of Charles Darwin’s cornerstone ideas – adaptation to the environment accelerates the creation of new species.
Evolution
Source: EurekAlert
Posted on: Wednesday, Apr 02, 2008, 9:23am
Rating: | Views: 1177 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Apr 02, 2008, 9:23am
Rating: | Views: 1177 | Comments: 0
AIDS may partly be the consequence of an evolutionary accident
“AIDS is a deadly disease in people that is caused by human immunodeficiency virus (HIV). But similar viruses such as simian immunodeficiency virus (SIV), which infects monkeys, usually don’t cause disease in their natural monkey hosts,” says Professor Frank Kirchhoff from the University of Ulm in Germany.
“AIDS is a deadly disease in people that is caused by human immunodeficiency virus (HIV). But similar viruses such as simian immunodeficiency virus (SIV), which infects monkeys, usually don’t cause disease in their natural monkey hosts,” says Professor Frank Kirchhoff from the University of Ulm in Germany.
Evolution
Source: EurekAlert
Posted on: Tuesday, Apr 01, 2008, 9:35am
Rating: | Views: 1168 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Apr 01, 2008, 9:35am
Rating: | Views: 1168 | Comments: 0
How to be reincarnated as a queen
After a life of hard labour ending in death it would be great to be reincarnated as royalty. Now we know what to do to make it happen
After a life of hard labour ending in death it would be great to be reincarnated as royalty. Now we know what to do to make it happen
Evolution
Source: New Scientist
Posted on: Tuesday, Apr 01, 2008, 9:34am
Rating: | Views: 1218 | Comments: 0
Source: New Scientist
Posted on: Tuesday, Apr 01, 2008, 9:34am
Rating: | Views: 1218 | Comments: 0
Study questions 'cost of complexity' in evolution
Higher organisms do not have a “cost of complexity” — or slowdown in the evolution of complex traits — according to a report by researchers at Yale and Washington University in Nature.
Higher organisms do not have a “cost of complexity” — or slowdown in the evolution of complex traits — according to a report by researchers at Yale and Washington University in Nature.
Evolution
Source: EurekAlert
Posted on: Monday, Mar 31, 2008, 5:44pm
Rating: | Views: 1122 | Comments: 0
Source: EurekAlert
Posted on: Monday, Mar 31, 2008, 5:44pm
Rating: | Views: 1122 | Comments: 0
Low oxygen and molybdenum in ancient oceans delayed evolution of life by 2 billion years
A deficiency of oxygen and the heavy metal molybdenum in the ancient deep ocean may have delayed the evolution of animal life on Earth by nearly two billion years, a study led by UC Riverside biogeochemists has found.
A deficiency of oxygen and the heavy metal molybdenum in the ancient deep ocean may have delayed the evolution of animal life on Earth by nearly two billion years, a study led by UC Riverside biogeochemists has found.
Evolution
Source: EurekAlert
Posted on: Wednesday, Mar 26, 2008, 2:11pm
Rating: | Views: 1152 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Mar 26, 2008, 2:11pm
Rating: | Views: 1152 | Comments: 0
Living fossil still calls Australia home
They are separated by a vast ocean and by millions of years, but tiny prehistoric bones found on an Australian farm have been directly linked to a strange and secretive little animal that lives today in the southern rainforests of South America.
They are separated by a vast ocean and by millions of years, but tiny prehistoric bones found on an Australian farm have been directly linked to a strange and secretive little animal that lives today in the southern rainforests of South America.
Evolution
Source: EurekAlert
Posted on: Wednesday, Mar 26, 2008, 9:12am
Rating: | Views: 1502 | Comments: 0
Source: EurekAlert
Posted on: Wednesday, Mar 26, 2008, 9:12am
Rating: | Views: 1502 | Comments: 0
Common aquatic animals show extreme resistance to radiation
Scientists at Harvard University have found that a common class of freshwater invertebrate animals called bdelloid rotifers are extraordinarily resistant to ionizing radiation, surviving and continuing to reproduce after doses of gamma radiation much greater than that tolerated by any other animal species studied to date.
Scientists at Harvard University have found that a common class of freshwater invertebrate animals called bdelloid rotifers are extraordinarily resistant to ionizing radiation, surviving and continuing to reproduce after doses of gamma radiation much greater than that tolerated by any other animal species studied to date.
Evolution
Source: EurekAlert
Posted on: Tuesday, Mar 25, 2008, 9:57am
Rating: | Views: 1143 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Mar 25, 2008, 9:57am
Rating: | Views: 1143 | Comments: 0
Evolution of new species slows down as number of competitors increases
The rate at which new species are formed in a group of closely related animals decreases as the total number of different species in that group goes up
The rate at which new species are formed in a group of closely related animals decreases as the total number of different species in that group goes up
Evolution
Source: EurekAlert
Posted on: Tuesday, Mar 25, 2008, 9:56am
Rating: | Views: 1141 | Comments: 0
Source: EurekAlert
Posted on: Tuesday, Mar 25, 2008, 9:56am
Rating: | Views: 1141 | Comments: 0
Birth of an enzyme
Scientists succeed in designing artificial enzymes that also undergo 'evolution in a test tube'
Scientists succeed in designing artificial enzymes that also undergo 'evolution in a test tube'
Biochemistry
Source: EurekAlert
Posted on: Monday, Mar 24, 2008, 9:32am
Rating: | Views: 1201 | Comments: 0
Source: EurekAlert
Posted on: Monday, Mar 24, 2008, 9:32am
Rating: | Views: 1201 | Comments: 0
The Extinct Human Species That Was Smarter Than Us
The superintelligent Boskops had small, childlike faces and huge melon heads.
The superintelligent Boskops had small, childlike faces and huge melon heads.
Evolution
Source: Discover Magazine
Posted on: Monday, Mar 24, 2008, 9:32am
Rating: | Views: 1215 | Comments: 0
Source: Discover Magazine
Posted on: Monday, Mar 24, 2008, 9:32am
Rating: | Views: 1215 | Comments: 0
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