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Birds

Dinosaurs Stretched, Shrunk and Twisted Into Birds
September 6, 2007
Size matters, thought paleontologists envisioning the evolution of birds from dinosaurs.  The old story was that dinosaurs shrunk as their arms were becoming wings.  That view has been challenged by a new fossil reported in Science.1  Alan H. Turner (American Museum of Natural History) and four others reported a “basal dromeosaurid” that was small long […]
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Fossils

Do Genes Reveal the Cambrian Explosion?
September 4, 2007
A Croatian geneticist believes he can find the Cambrian Explosion in the genes.  Science Daily told about Tomislav Domazet-Loso from the Rudjer Boskovic Institute in Zagreb, whose team employed a “novel methodological approach in evolutionary studies” they called “genomic phylostratigraphy.”  Looking for a “genetic trigger” for the Cambrian explosion, they hoped their method can “shed […]
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Dumb Ideas

Messy Evidence Proves Humans Evolved
September 1, 2007
An article from Live Science seems to suggest that the way to do science these days is to believe things in spite of the evidence – at least when it comes to human evolution.  In a juxtaposition of imponderables that might make a schizophrenic feel at home, Meredith Small asserted that evolution is a fact […]
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Early Man

Tales of Two Footprints
August 27, 2007
Footprints in the sands of time have been found at two different locations.  What tales do they tell?     One is a footprint of a Roman soldier.  EurekAlert described how the sandal print was uncovered at Hippos, or Susita, on a hill east of the Sea of Galilee.  It hints that soldiers participated in […]
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Early Man

Fossil Gorilla Forces Hominid Ancestor Earlier
August 23, 2007
A set of gorilla teeth found in Ethiopia pushes the evolutionary story of a split between apes and humans back almost twice as far as previously thought.  Nature reported the fossil announcement that estimated the date of the teeth as 10.5-11 million years old.1  The prior estimate for a human-ape divergence was about 6 million. […]
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Biomimetics

Two Ways to Look at a Fin
August 21, 2007
Two science articles this month showed very different ways to look at a fish fin.  One looked for evolution; the other looked for design.  One tried to trace an evolutionary story with no practical application; the other tried to find ways to improve our lives.     The evolutionary story involved a fossil coelacanth.  Science […]
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Dinosaurs

Largest Dinosaur Mass Grave in Switzerland Found
August 15, 2007
As many as 100 plateosaurs may be buried in a mass grave in Switzerland, reported the Reuters news service.  “The finds show that an area known for Plateosaurus finds for decades may be much larger than originally thought” – as much as a mile in width in the town of Frick, near the German border.  […]
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Fossils

Trilobite Tree Is Upside Down
July 28, 2007
Darwin predicted that life would become more diverse over time, like the branches on a tree.  The pattern of trilobites in the fossil record is just the opposite: more diversity appears in the lower layers, and less diversity in the upper layers.  Surprisingly, evolutionary paleontologists are turning this into evidence for Darwin’s theory.     […]
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Dinosaurs

Dinosaur Sex and Other Tales
July 24, 2007
How much do we really know about dinosaurs?  How much can be inferred from their bones?  Two recent stories illustrate conflicting themes: much of what we thought we knew was wrong, but that doesn’t stop evolutionary paleontologists from speaking with confidence. Walking with dino ancestors:  Paleontologists used to think that the alleged precursors of dinosaurs […]
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Amazing Facts

Roadrunner and Largest Flying Bird Described from Fossils
July 15, 2007
A bird with a 23-foot wingspan was described in the BBC News.  At an estimated 155 pounds, this bird probably had to jump from a height to get airborne and likely rode on thermals.  The article says the bird rivalled in size some light airplanes.  A diagram shows the Argentinean giant with wings upwardly stretched […]
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Fossils

Baby Frozen Mammoth Found Intact
July 10, 2007
The BBC News has a picture of a baby frozen mammoth that was found intact in northwest Siberia.  The article says it is one of the best-preserved frozen mammoths ever found, complete with eyes, fur, and trunk.  One investigator said, “In terms of its state of preservation, this is the world’s most valuable discovery” of […]
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Fossils

Greenland Was Forest Green
July 6, 2007
Greenland once had boreal forests like those in Sweden, reported Science Daily.  Researchers analyzed the mud under 2 km of ice and found DNA from yew, alder, pine, grain, butterflies, moths, flies and beetles.  According to the article, “the research is painting a picture which is overturning all previous assumptions about biological life and the […]
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Dinosaurs

Chinese Eat Dragon Bone for Health
July 4, 2007
Chinese villagers dig up dinosaur bones for health food.  Yahoo News reported, “Villagers in central China dug up a ton of dinosaur bones and boiled them in soup or ground them into powder for traditional medicine, believing they were from flying dragons and had healing powers.”  The article says the bones are calcium rich and […]
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Birds

Giant Fossil Penguins Lived in Warm Waters
June 26, 2007
“Giant prehistoric penguins?  In Peru?” puzzled a reporter on Science Daily.  “It sounds more like something out of Hollywood than science,” but a fossil penguin you could look eye to eye with has been found that far north.  “We tend to think of penguins as being cold-adapted species,” said one of the discoverers,” but not […]
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Cell Biology

Crisis at Both Ends of Darwin’s Tree
June 21, 2007
Two assumptions about evolution – one about the earliest multicellular organisms and one about the rise of mammals – have run into trouble.  Eukarya sans Mechanista:  “In the absence of direct evidence, science should proceed cautiously with conjecture,” wisely advised Anthony Poole and David Penny in Nature.1  They scorned the researchers who glibly invent fables […]
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