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Have We Been Sold a Bill of Goods About Feathered Dinosaurs and Bird Evolution?

Most people remember the poignant moment at the end of Jurassic Park when the professor, on a flight away from his harrowing experiences on the island of dinosaurs run amok, sees a flock of modern birds and ponders their peaceful existence as descendants of the velociraptors and tyrannosaurs that nearly killed him and his friends.  […]

Were Dinosaurs Gasping for Air?

A news story on CNN claims that “the air contained only about 10 percent oxygen at the time of the dinosaurs.”  It climbed to 23% by 40 million years ago, then dropped to its current level at 21%, said the researchers.  They feel that the rise of oxygen “almost certainly contributed to evolution of large […]

Dinolava Theory Back in Eruption

Meteor impact or volcanic eruption?  Science Now reports that the volcano theory of dinosaur extinction has rejuvenated, challenging the long popularity of the Chicxulub impact hypothesis.     Notwithstanding all the dramatic animations on science documentaries of a cataclysmic meteor wiping out the dinosaurs, the article by Carolyn Gramling states that “Scientists have long wrangled […]

Lung Link to Dinos and Birds Disputed

Carl Wieland at AIG has given a creationist response to the widely-publicized claim last week that dinosaurs breathed like birds (see Live Science and News@Nature). Creationists are good for evolutionists.  Otherwise, who would keep their rampant speculations in check?  If evolutionists were really interested in truth, they would welcome debate over interpretations of evidence from […]

Croc Teeth Bite Fatal Wound into Dino Phylogeny

This line sounds serious: “We have pretty much erased the record of Triassic ornithischian dinosaurs from North America, Europe and worldwide, except for South America.”  This is what William Parker said about his find of a complete Revueltosaurus fossil in Arizona that upsets the leading story of the rise of the ornithischian dinosaurs (one of […]

Did Fossils Inspire Thunderbird Legends?

Adrienne Major thinks that the Lakota got their legend of the Thunderbird from looking at fossil pterosaurs in the badlands.  Her speculation is explored in National Geographic News.  Major thinks other world legends have their origin in fossils that ancient people observed. This hypothesis is no less speculative than the one by creationists that Indians […]

Soft T-Rex Tissue Claimed Bird-Like; Age Ignored

More details about the soft tissue found in a T. rex thigh bone (see 03/24/2005 story) were published in Science this week.1  Mary Schweitzer’s team claims to have found evidence of medullary bone [MB], a type of mineralized and vascularized bony tissue found only in certain birds during ovulation as a buffer against calcium loss.  […]

Stegosaur Plates Were for Decoration

Berkeley scientists are disputing the notion that the rows of plates on the backs of stegosaurs served as heat exchangers.  Instead, they were for show.  EurekAlert and Science Daily explain that this was probably true of other dinosaur decorations: “The team’s analysis of stegosaur plates lends support to a growing consensus among paleontologists that the […]

Toothy Dinosaur Goes Vegan

The news media all pounced on a dinosaur fossil discovery reported in Nature this week.1  Dinosaur finds are ever popular, and reporters especially like it when an artist’s rendition is available.  Some outlets reporting the discovery of Falcarius utahensis, a previously unknown species “in the process of converting to vegetarianism from a rather more bloodthirsty […]

Dinosaur Fossilized in the Act of Laying Eggs

Two eggs, with shell material still attached, were found inside the oviducts of a theropod dinosaur, a Chinese team reported in Science.1  This first-time discovery of intact eggs in the body of the female “suggests that theropod dinosaurs had two functional oviducts (like crocodiles) but that each oviduct produced only one egg at a time […]

Soft Tissue from Dinosaurs Found: Intact Cells and Blood Vessels

The news media are abuzz with exciting reports about the discovery of soft tissues recovered from a Tyrannosaurus rex bone; see CNN, National Geographic, BBC News, MSNBC and News@Nature for examples.  The soft tissue, analyzed from a thighbone unearthed in Montana, was reported by a North Carolina team led by Mary Higby Schweizer and was […]

South American Dinosaur Find Modifies Theories

A deinonychus-like dinosaur has been found in Argentina.  Representatives of this group, including velociraptor, had previously only been known in the northern hemisphere and Asia.  Since South America was supposedly on another land mass at the time, “The new discovery demonstrates that Cretaceous theropod faunas from the southern continents shared greater similarity with those of […]

Jurassic Park Revision #76: Bonehead Dinosaurs Not Head-Butters

Pachycephalosaurs, or bone-heads, were dome-headed dinosaurs with skulls nine inches thick.  Interpretation: they rammed each other like rams, or head-butted jeeps filled with hapless human tourists in the movies.  Wrong, reports National Geographic in the March 2005 issue: research by Jack Horner and Mark Goodwin has shown that the thick skulls, surprisingly, could not have […]

This Badger Ate Dinosaurs for Breakfast

BBC News claims a new fossil discovery published in Nature,1 a large badger-like carnivorous mammal, ate dinosaurs for lunch.  But then again, who knows what time of day the Cretaceous restaurants were open?     The fossil, another in a series of spectacular finds from the Liaoning Province in China, is creating a sensation, because […]

Cretaceous Temperature Estimates Point Out Flaws in Climate Models

Nature1 this week described evidence for high temperatures in the Arctic during the Cretaceous that it termed “astounding.”  Based on work by Jenkins et al. that Arctic waters were 15°C, as warm as modern coastal waters off France and Maryland. For a region blanketed in darkness for half of the year, the Arctic Ocean was […]
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