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Facile Fixes for Fossil Foibles

February 14, 2008

Can biologists see Darwin in the fossils? Only if they look hard. Andrew P. Hendry (McGill University) wrote in Nature that Darwin has been there all along; we just weren’t looking right.1 Hendry argues that our methods of statistically analyzing the fossil record are guaranteed not to see Darwin. To explain the patterns […]

Human Body

Fast Protein Fine-Tunes the Ear

February 13, 2008

A protein helps the human ear respond to volume differences over 12 orders of magnitude.

Amazing Facts

Migrating Birds Measure Longitude

February 13, 2008

Migrating birds are able to get back on course, even when released 1000 km east of their normal migration path. This shows that long-distance migrating birds are capable of true bicoordinate navigation: the ability to make course corrections both in latitude and longitude. The results of experiments, published in Current Biology,1 left the researchers baffled: […]

Genetics

Animals from Junk by Chance

February 12, 2008

How to build an animal: throw junk DNA at it. That seems to be the latest idea on where higher animals came from. A press release from University of Bristol posted on Science Daily and EurekAlert announced, “‘Junk DNA’ Can Explain Origin And Complexity Of Vertebrates, Study Suggests.” The basic idea, coming from […]

Uncategorized

Defending Darwin Day

February 11, 2008

Tomorrow is the 199th birthday of Charles Darwin. The rising anticipation of a big 200th celebration next year prompts a question: why is this man worthy of such hullabaloo more than other scientists? Why the efforts to make Darwin Day an annual event of international scope? Kevin Padian undertook to justify all this attention in […]

Solar System

Something is Cooking Under Enceladus

February 9, 2008

Planetary scientists have been puzzling over Enceladus, a small moon of Saturn, since geysers were discovered erupting from its south pole three years ago. Some models suggested that eruptions could occur without liquid water, but others were not sure. Opinion now seems to be shifting back to the necessity of a wet interior, […]

Amazing Facts

Did Birds Evolve Aeronautical Engineering?

February 8, 2008

Two news stories on birds may not seem to flock together. One is about their supreme aeronautical engineering. The other ponders when they evolved. A story on EurekAlert and Science Daily describes how engineers are eyeing birds, bats and insects for design ideas. The appeal is clear from the following comparisons: A Blackbird […]

Dumb Ideas

Indebted to Darwin

February 7, 2008

Britain’s Food Standards Agency is concerned about diminishing fish stocks and is asking citizens to consume less, reported The Telegraph. This can only mean one thing, thinks Ulf Dieckmann (International Institute for Applied Systems Analysis in Austria): it’s come time to pay the piper. Who is the piper, you ask? Answer: Charles Darwin. Dr Dieckmann […]

Genetics

Of All the Nerve: Functional Intron Discovered

February 6, 2008

An intron vital to the production of nerve cells has been discovered, reported Science Daily. It acts as a “gatekeeper” to guide the messenger RNA for local control of gene expression in dendrites, the spindly arms of neurons. The discovery was made by a research team at University of Pennsylvania School of Medicine. […]

Physics

Are Long-Term Climate Models Trustworthy?

February 5, 2008

Everything from global warming policy to evolutionary history depends on long-term climate models. Textbooks make it seem like earth keeps reliable recordings that allow scientists to simply read off the record of years, decades, centuries, millennia and millions of years objectively. It’s not that simple, wrote Maureen E. Raymo and Peter Huybers in Nature last […]

Intelligent Design

SETI Signals Could Be Loaded with Information

February 4, 2008

Unusual properties of electromagnetic waves allow for a higher carrying capacity of information than thought. SETI researcher Seth Shostak reported on Space.com that Swedish researchers have found a possible “subspace channel” in the orbital angular momentum of narrowband radio waves that might allow the encoding of information. This information would be impervious to the jumbling […]

Health

Beat the Crowds: Go Outdoors

February 4, 2008

Fewer people are feeling close to nature, said a report on PhysOrg. According to a study done by Oliver Pergams (U of Illinois) and Patricia Zaradic (Environmental Leadership Program, Pennsylvania), a decline in visitation at national parks corresponds to an increase in sedentary activities like playing video games, surfing the Internet and watching movies. They […]

Politics and Ethics

Did Murder Evolve?

February 3, 2008

Is it appropriate for scientists to speculate on the evolution of murder? Nature had no problem with it. They allowed Dan Jones, a freelance writer in Brighton, UK, to publish a lengthy article on how murder and warfare evolved. No other explanations for these scourges were mentioned except to dismiss them. Nature has apparently incorporated […]

Cell Biology

Did Darwinism Build the Nuclear Pore Complex?

February 2, 2008

After nine years of work, three universities including a team at Rockefeller University completed a beautiful new model of the nuclear pore complex. The story is told by Science Daily. The article attributed the origin of this exquisite gatekeeper of the nucleus to evolution: “their findings provide a glimpse into how the nucleus […]