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POPSDinosaur evolutionary tree unveiledby
Mohir Yesterday 7:47 AM It remained at that low level throughout the following Cretaceous period, a time of plenty in Earth's terrestrial history in which flowering plants, lizards, snakes, birds and mammals all became much more numerous. Dinosaurs apparently did not take advantage of the abundant food supply that emerged during the Cretaceous Terrestrial Revolution. "Our supertree allows us to look for unusual patterns across the whole of dinosaurs for the first time," says Lloyd. "It is the most comprehensive picture ever produced of how dinosaurs evolved."
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POPSDinosaurs Diversified Over Time, not Suddenly During this epoch of riotous biodiversity, flowering plants, social insects, butterflies, modern groups of lizards, mammals, and possibly birds, too, all emerged. Some experts have suggested that dinosaurs were also part of the show, as so many weird fossils, such as duckbilled hadrosaurs, horned ceratopsians, pachycephalosaurs and other wonders, date from this time. But a new study, published on Wednesday in a British journal Proceedings of the Royal Society B, says that dinosaurs were less than a sideshow in the DNA spectacular. Researchers led by Graeme Lloyd of the University of Bristol, western England, devised a "supertree" of dinosaur evolution, patiently analyzing how more than 450 species -- about 70 percent of the known finds -- developed.
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POPSDino diversity earlier than first thought Maybe there is the idea that species including the dinosaurs were trying to deal with conditions brought about by the meteor, so many adaptations arose, but nature loves nothing more than competition, even when times are good.
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POPSThe Seven Sweetest Fictional Theme Parks Pt 2 (#4 - #1) Ah, we saved the best for last.... Yes, if you have not guessed what number one is by now I have this to say: Did you see ANY movies in the early to mid 90s when this one started the new Dinosaur craze? We even had to endure Brendan Fraser as Encino Man due to this one! By now I am sure you know Michael Crichton's Magnum Opus is number one. and no, it is NOT Congo! Enjoy!
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POPSPoor People Are Fat and A Nation of Whiners Progressive thinking from dinosaurs? Gramm's views have not changed since the 1970's. Where are the stats? What are the solutions? Last time I looked, name calling never actually solved anything. Labling groups of impoverished people and witty adjectives for their plight might make a magazine cover, but in reality it does not make a bad situation any better. The "Al Gore Syndrome" at work agian. Talk, Talk, Talk...soluntions implemented = NONE. Perhaps he'll win the Nobel Peace Prize for his insults and remarkable discovery that "Poor People Are Fat". Pehaps if they stopped whining about us being a "Nation of Whiners" and actually started "doing" the right thing for the "Poor, Fat People" - we could get along towards a solution for the US, and Worldwide, crisis. Roll up your sleeves, Boys, and actually DO something already, will ya!!!
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POPSA roar from the past :) Each Parasaurolophus probably had a voice that was distinctive enough not only to distinguish it from other dinosaurs, but from other Parasaurolophuses. The sound may have been somewhat birdlike, and they may have made songs of some sort to call to one another.
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POPSNow they say global warming affects US security Now the loony left is trying to appeal to conservatives with a security theme. Never mind that flood have been wiping out people since Noah built his ark. The ancient world is full of examples of thriving cities having been abandoned due to climate change - and this long before any industrialization or greenhouse gasses. Maybe the dinosaurs went extinct due to their all pervasive flatulence? I think this global warming hype is more of the same - liberal oral flatulence.
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POPSMass extinctions? Blame it on the ocean In the course of hundreds of millions of years the world's oceans have expanded and contracted in response to the shifting of the Earth's tectonic plates and to changes in climate. There were periods of the planet's history when vast areas of the continents were flooded by shallow seas such as the shark and mosasaur infested seaway that neatly split North America during the age of the dinosaurs. As those epicontinental seas drained, animals like mosasaurs and giant sharks went extinct, and conditions on the marine shelves where life exhibited its greatest diversity in the form of things like clams and snails changed as well.
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POPSSome Flaws In Evolutionary Theory "One of the classic arguments in favor of the evolutionist claim that all species have a common origin is that species show all sorts of similarities which can't be due to chance. Indeed, the enormous mass of odd similarities that he found in his studies of nature around the world is what convinced Darwin of the common origin of all species, and he didn't know half of the similarities that we know today. Thus, the standard evolutionist argument is: If all those species are much more similar than mere chance would allow, then they must be related. However, a greater than chance similarity between organisms only proves precisely that: greater than chance similarity between organisms. There exist other possible non-evolutionist explanations for the same facts, the most popular of which is that species were designed by some kind of ultra-powerful being. However, we don't need to go to such extremes to put the argument under stress."
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POPSSea's Ebb And Flow Drive World's Big Extinction Events Arnold I. Miller, a paleobiologist and professor of geology at the University of Cincinnati, says the new study is striking because it establishes a clear relationship between the tempo of mass extinction events and changes in sea level and sediment: "Over the years, researchers have become fairly dismissive of the idea that marine mass extinctions like the great extinction of the Late Permian might be linked to sea-level declines, even though these declines are known to have occurred many times throughout the history of life. The clear relationship this study documents will motivate many to rethink their previous views."
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