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Fossil plants bring Wilf distinguished speaker honor

... that test and provide deep-time context to modern observations of climate change, biodiversity, ... interior U.S. This time interval shaped the modern world and included the latest Cretaceous climate ... the Paleocene-Eocene boundary. He also looks at modern insect herbivory, leaf shape-to-climate ...

Arctic climate under greenhouse conditions in the Late Cretaceous

... preserved in late Cretaceous marine sediments. In modern oceans, diatoms play a dominant role in the ... electron microscopy techniques. In the modern ocean, scientists use floating sediment traps to ... specially adapted species resembling those of the modern North Pacific Subtropical Gyre, or preserved in ...

Our 'caveman logic' embraces ESP over evolution

... LOGIC: THE PERSISTENCE OF PRIMITIVE THINKING IN A modern WORLD (Prometheus Books, $19.98), Davis ... back in the Pleistocene age. Davis laments a modern world in which more people believe in ESP, ... LOGIC: THE PERSISTENCE OF PRIMITIVE THINKING IN A modern WORLD is the product of more than two decades of ...

Fish on the menu of our ancestors

... analysis of a bone from one of the earliest modern humans in Asia, the 40,000 year old skeleton from ... analysis of the diet of one of the earliest modern humans in Asia, the 40,000 year old skeleton from ... human. Since fish appeared on the menu of modern humans before consistent evidence for effective ...

First direct evidence of substantial fish consumption by early modern humans in China

... Analysis of a bone from one of the earliest modern human in Asia, the 40,000-year-old skeleton from ... consumption of aquatic resources by early modern humans in China. Since this occurs before ... from an expanding population at the time of modern human emergence across Eurasia. ...

Size did matter

... for transferring giant spermatozoa. Since modern ostracods still produce giant sperm and manoeuvre ... with the complex reproductive apparatus of modern relatives of these Cretaceous fossils. The team ... had inflated cavities that only occur in modern ostracods that have recently mated, meaning ...

Humans related to orangutans, not chimps, says new Pitt, Buffalo Museum of Science study

... ancestor migrated between Southeast Asiawhere modern orangutans are fromand other parts of the world ... then examined 56 features uniquely shared among modern humans, fossil hominidsancestral humans such as ... ape fossils are largely found in Africa, whereas modern orangutans are found in Southeast Asia. To ...

Lice can be nice to us

... its natural context." Many health problems in modern humans are caused by over-active immune ... mice. This implies that other mammals, such as modern humans, that develop in artificial environments ... completely different to those encountered in modern times." ...

Fossil evidence of missing link in the origin of seals, sea lions, walruses found in Canadian Arctic

... in the April 23 issue of the journal Nature . modern seals, sea lions, and walruses all have ... and fore-limbs comparatively proportionate to modern carnivorous land animals as opposed to pinnipeds. ... (small short-legged herbivores, ancestors to modern giraffes and deer). The earliest ...

A full-sized California-style home made of bamboo

... and also a founding director of the Institute of modern Bamboo, Timber and Composite Structures of the ... Engineering, and his team built the world's first modern bamboo truck-loaded roadway bridge in 2007. ... structure is a milestone in the use of bamboo for modern construction both in China and the world. Due to ...

Cretaceous octopus with ink and suckers -- the world's least likely fossils?

... year old fossils reveal much earlier origins of modern octopuses. These are among the rarest and ... most was how similar the specimens are to modern octopus: 'these things are 95 million years old, ... structures.' This pushes back the origins of modern octopus by tens of millions of years, and while ...

Tension in the nanoworld

... scales below 100 nm is a key requirement in modern measurement because strain determines the ... properties of high-performance ceramics or modern electronic devices, respectively. The ... its 20 nm resolving power matches the needs of modern nanoscience and technology. Now, the research ...

Microscopic morphology adds to the scorpion family tree

... modern microscopy technology has allowed two scorpion ... sample represents all major scorpion lineages. modern microscopy techniquesscanning electron ... must have occurred early in the evolution of modern scorpions. Both conditions of the lamellar ...

Understanding extinct microbes may influence the state of modern human health

... of Oklahoma has implications for the state of modern human health. Cecil Lewis, assistant professor in ... provide a view of these ecosystems prior to the modern world economy. In living people, the gut ... to each other functionally than a sample of modern microbiomes. They proposed that prehistoric ...

Study shows competition, not climate change, led to Neanderthal extinction

... with the last Neanderthals and the first modern human populations with an approach typically used ... areas for Neanderthals and anatomically modern humans during each of the climatic phases ... expansion of the ecological niche occupied by modern humans during GI8. The researchers' models ...

'Hobbit' fossils represent a new species, concludes University of Minnesota anthropologist

... whether or not such a species was distinct from modern humans. "[Homo floresiensis] is the most ... lived until very recently -- contemporaries with modern humans." Comparing the simulation to the ... for a small fossil hominin species and not a modern human. Their study was published online this ...

Overcoming Taboos, Myths, and Dogmas in Bioethics

... the most complex and sensitive issues confronting modern society. From discussions on abortion to assisted ... decisions that have become routine not only in modern medical care but in virtually all aspects of life in the modern world." Those averse to new technologies ...

Isopora or isn't it?

... The coral genus Isopora, a sister group of the modern dominant Acropora, until now was only known from ... the same time as the origination of many modern Caribbean reef coral dominants including Acropora ... these corals co-occurred with the two abundant modern Caribbean species of elkhorn and staghorn corals ...

Evolution's new wrinkle

... as feedback control. Examples abound, however, in modern technology, including cruise control in autos and ... arena." Evolution, the central theory of modern biology, is regarded as a gradual change in the ... Chakrabarti said that one of the aims of modern evolutionary theory is to identify principles of ...

October 2008 GEOLOGY and GSA TODAY media highlights

... into euxinic sediments: Evidence from the modern Black Sea Nadja Neubert et al., Universitat ... forms were not ancestral to any Phanerozoic or modern organisms. Naturaliste Plateau, offshore ... The model's predictions match observations in a modern seafloor volcanogenic massive-sulphide (VMS) ...

White House announces 2007 National Medal of Science laureates

... contributions to the mathematical theory of modern data networks, including the functional ... and solids, enabling the development of numerous modern technologies. David Wineland, National ... of ions, that have had multiple applications in modern physics. The 2007 National Medal of Technology ...

New book further supports controversial theory of 'Man the Hunted'

... cooperation and many other features we have as modern humans developed from our attempts to out-smart ... Their teeth were relatively small, very much like modern humans, and they were fruit and nut eaters. ... and Hart provide evidence that many of our modern human traits, including those of cooperation and ...

Humans' response to risk can be unnecessarily dangerous, finds Tel Aviv University study

... say, might not prepare humankind for the modern dangers we face every day like crossing the ... new and potentially dangerous challenges in our modern technology-driven world. Feeling Risky ... world this would be the best strategy, but in modern life it has nothing do with the real inherent ...

Spradling receives Gruber Foundation Genetics Prize for new genetic techniques

... Together, these advances inaugurated the modern era in which Drosophila serves as a versatile ... Mary-Claire King, for three major findings in modern genetics: the similarity of the human and ... 2003: David Botstein, a driving force in modern genetics who established the ground rules for ...

Living fossils have long- and short-term memory

... ago. However, in the intervening years their modern soft bodied relatives dumped the shell and ... has both short and long term memory, just like modern cephalopods, despite lacking the same brain ... unsophisticated Nautilus brain could teach us how modern cephalopod brains evolved. ...

Ancient sunflower fuels debate about agriculture in the Americas

... and understanding its ancestry is important for modern crop-breeding purposes," Lentz says. "For a long ... early historic texts, describes Lentz. The modern Nahua use two words for sunflower: chimalxochitl, ... sunflower seed stocks to help improve our modern agricultural capability. ...

Ancient ecosystems organized much like our own

... evolution of life, and could provide insights for modern ecology--such as how ecosystems will respond to ... canadensis, a large, unusual organism with no modern descendents, was a formidable predator of ... reconstruct ancient food webs and compare them to modern webs, opening up new avenues of paleoecology. We ...

Genetic sequencing of protein from T. rex bone confirms dinosaurs' link to birds

... to sequence some critical organisms, including modern alligator and modern ostrich, by mass spectrometry," says Asara. ... also showed that it groups better with birds than modern reptiles, such as alligators and green anole ...

Dawn of human matrilineal diversity

... The migrations after 60,000 years ago that led modern humans on their epic journeys to populate the ... in doing so refines our understanding of early modern Homo sapiens history. Doron Behar, Rambam ... believe heralds the beginning of fully modern human behavior, including abstract thought and ...

Avian origins: new analysis confirms ancient beginnings

... ANN ARBOR, Mich.---Did modern birds originate around the time of the dinosaurs' ... molecular evidence yet for an ancient origin of modern birds, suggesting that they arose more than 100 ... who is first author on the paper. In the case of modern birds, however, the two approaches have yielded ...

A warming climate can support glacial ice

... a glacial ice cap, about half the size of the modern day glacial ice sheet, existed 91 million years ... an ice sheet about 50-60 percent the size of the modern Antarctic ice cap existed for about 200,000 ... cool summers. Likewise, high mountains under the modern Antarctic ice cap could have been potential sites ...

December GEOLOGY and GSA TODAY media highlights

... the southern tropics, but it was narrower than in modern times because it was delimited to the south by ... player in controlling global climate system in modern times, but also was in the recent geological ... anomalously hot mantle source similar to that of modern mantle plumes. Thus, these komatiitic basalts ...

Fossil record reveals elusive jellyfish more than 500 million years old

... traits that allow them to be related to modern orders and families of jellyfish. The specimens ... to assert that the types can be related to the modern orders and families of jellyfish. The specimens ... That means that either the complexity of modern jellyfish developed rapidly roughly 500 million ...

Red hair and freckles...

... found a variant that has never been observed in modern humans. Thanks to a series of complex tests, ... the variant may have been contaminated with modern human DNA, or were a random result caused by ... with similarly reduced activity are also known in modern man - although they are a result of other ...

Environmental setting of human migrations in the circum-Pacific Region

... adds insight into the migration of anatomically modern humans out of Africa and into Asia less than ... based largely on genetic evidence, that modern humans migrated into eastern Asia via a southern coastal route. The expansion of modern human populations into the circum-Pacific region ...

New research sheds light on 'Hobbit'

... the hobbits left wrist. The research asserts that modern humans and our closest fossil relatives, the ... wristnothing at all like that seen in modern humans and Neandertals. The lead author of ... wrist bones do not look anything like those of modern humans. Theyre not even close! The evidence ...

Why conservation efforts often fail

... BLOOMINGTON, Ind. -- modern conservation techniques have brought us the ... rescue of prized lobster fisheries. So how can modern conservation strategies also have wrought such ... exploiters, to create effective regulation." modern conservation theory relies on well established ...

Ancient whale fall from California's Ao Nuevo Island one of youngest, most complete known

... crucial factor. "What we have are relatives of modern chemosynthetic clams associated directly with the ... tiny whale, smaller than any other known from modern whale falls," Pyenson said. "That tells us that ... to do "side-by-side comparisons of the fossil and modern whale-fall clam shells" to better characterize ...

Ancient whale fall from California's Año Nuevo Island one of youngest, most complete known

... crucial factor. "What we have are relatives of modern chemosynthetic clams associated directly with the ... tiny whale, smaller than any other known from modern whale falls," Pyenson said. "That tells us that ... to do "side-by-side comparisons of the fossil and modern whale-fall clam shells" to better characterize ...

Was ability to run early man's Achilles heel?

... have struggled to run at even half the speed of modern man, new research suggests. The University of ... if early humans lacked an Achilles tendon, as modern chimps and gorillas do, then their ability to run ... we have to how we progressed down the pathway to modern human walking and running, said Dr Sellers. We ...
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