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Recent News and Articles on the Keywords: have been + around since + dinosaurs  Related to the article below (Last Update: 5/13/2008)

Von Bondies mix anger and pop on comeback disc
Chicago Maroon, IL -
Yusuf Siddiquee: So it has been almost four years since your last full-length album?. What were you doing? Jason Stollsteimer: Don and I have been in the ...
Melvin Konner
Ha'aretz, Israel -
Anyway, when one dinosaur crushed them (the Roman, twice) they had long since built a fortress out of texts and talk. And because they?d been pushed around ...
A Life Less Ordinary
The Times, South Africa - May 10, 2008
A string of artificial companions have since trundled off the production line: the FurReal cat, the Roboraptor, the Robosapien, the Aibo and its litter of ...
411 Movies Interview: Zane Buzby of Up in Smoke
411mania.com, TX - May 11, 2008
What projects have you been working on? Zane Buzby: Well, since Up in Smoke, I became a television director, and I directed over 200 situation comedies, ...
Fighting Facts and Figures
Publishers Weekly, NY - May 11, 2008
?Maps and pocket atlases have been severely hurt,? she says. But Hoffman emphasizes that more in-depth offerings still do well. ?Big atlases haven't been ...

Space Com
Decline of the media dinosaurs
Ottawa Citizen,  Canada - May 6, 2008
I have been noticing the industry-wide relaxation of paid circulation and advertising revenues with morbid fascination for some time. ...
Ancient Asteroid Impact Coated Earth in Blanket of Beads Space Com
all 5 news articles »
Fathers Have Important Role in Children?s Literacy
Newswise (press release) - May 9, 2008
Since October 2006, there have been 45 five-week programs in Southern California. An estimated 675 families have benefitted from the program thus far. ...
Animal Interaction Behind Cambrian Explosion? 'Missing' Ancestors ...
Science Daily (press release) - May 6, 2008
The Cambrian Explosion was unique, Marshall said, because, though there have been mass extinctions ? such as that of the dinosaurs ? and recoveries since, ...
THE COMMENTARY TRACK: "Invincible Iron Man" #1 with Matt Fraction
Comic Book Resources, Ca - May 9, 2008
Now, longtime "Iron Man" fans know Stane melted his head off in "Iron Man" #200 and hasn't been around since. But I had a California book, a California team ...

Birmingham Weekly
The death(s) of Randall Specific
Birmingham Weekly - May 8, 2008
Joe had been poking around the town for almost a week when Randall arrived, so he figured that it wouldn?t be a big deal if he spent some time trailing him. ...
Source: Google News

Portholes: supporting awareness in a distributed work group -
P Dourish, S Bly - Proceedings of the SIGCHI conference on Human factors in …, 1992 - portal.acm.org
... to present regularly-updated digitised video images from locations around the media ...
Since ... To date, we have been working with three clients, all of which are ...

[PDF] Active Pixel Sensors: Are CCD's Dinosaurs? -
ER Fossum - 1993 - trs-new.jpl.nasa.gov
... Iior fhturc orbiter rrlissions around lupitcr and Satul II, the. ... for CCIX also grows
with aray size since CCI)s ... cr-lil]c transfer (Xl M have been dcvclopcd by ...

Topics The Precambrian fossils of Charnwood Forest -
TD Ford - Geology Today, 1999 - Blackwell Synergy
... which were deposited in water and have since been indurated to ... that there were no
scavengers around in late ... and suggested that it might have been an experiment ...

Walking and running -
RMN Alexander - MATHEMATICAL GAZETTE, 1996 - JSTOR
... dinosaurs were walking or running - and since we have ... Quite a lot of footprints have
been found in Texas ... of large brontosaurs, animals weighing around 30 tonnes ...

Dinosaur physiology: a critique
AF Bennett, B Dalzell - Evolution, 1973 - JSTOR
... limbs in very large forms, since these physical ... Dinosaurs may well have been
homeothermic, but Bakker fails to ... rotation occurs, as in mammals, around a point ...

Where Have All the Froggies Gone? -
M Barinaga - Science, 1990 - sciencemag.org
... It has not been seen since. ... Since 1984 that site has never had more than a dozen
males ... lies in sorting out a mass oflocal conditions that might have caused the ...

… , is a cursor? Categories versus continua for determining locomotor habit in mammals and dinosaurs -
MT Carrano - Journal of Zoology, 1999 - Cambridge Univ Press
... an inverted pendulum that oscillates around the foot ... test whether variables that
have been traditionally and ... Since locomotor habit cannot be directly observed ...

Dinosaurs, dragons, and dwarfs: The evolution of maximal body size -
GP Burness, J Diamond, T Flannery - Proceedings of the National Academy of Sciences, 2001 - National Acad Sciences
... mammals, whose representatives the monotremes have even lower ... present on all continents
until around 60 million ... Our analysis has been restricted to species ...

[PDF] Four-winged dinosaurs from China -
X Xu, Z Zhou, X Wang, X Kuang, F Zhang, X Du - Nature, 2003 - natureasia.com
... troodon- tids 7,10,11,13?16 , have been regarded as ... of the radius and this feature
has not been reported in ... in which they are well preserved around the whole ...
-

A Mathematical Model for Body Temperatures of Large Reptiles: Implications for Dinosaur Ecology -
JR Spotila, PW Lommen, GS Bakken, DM Gates - American Naturalist, 1973 - JSTOR
... was at the same tempera- ture all around the animal ... reproduction (Cowles 1945), probably
would have been seriously disrupted, since they undoubtedly ...

Source: Google Scholar

Life's 6-legged survivors -- evolutionary study shows beetles are in it for the long run

 

Most modern-day groups of beetles have been around since the time of the dinosaurs and have been diversifying ever since, says new research out in Science today (Friday 21 December 2007).

There are approximately 350,000 species of beetles on Earth, and probably millions more yet to be discovered, accounting for about 25% of all known life forms on the planet. The reason for this large number of beetle species has been debated by scientists for many years, but never resolved.

Now a team of scientists has shown that large numbers of modern-day beetle lineages evolved very soon after the first beetles originated, and have persisted ever since. Many modern-day lineages first appeared during the Jurassic period, when the major groups of dinosaurs appeared too.

Lead scientist on the study, Professor Alfried Vogler from Imperial College London’s Department of Life Sciences and the Natural History Museum’s Department of Entomology, explains: “The large number of beetle species existing today could very well be a direct result of this early evolution and the fact that there has been a very high rate of survival and continuous diversification of many lineages since then.”

The team behind today’s new study – the most extensive of its kind to date - used DNA sequencing and fossil records to compile a comprehensive evolutionary ‘family tree’ for beetles. By comparing DNA sequences from 1,880 beetle species, the scientists were able to group beetle species that are descended from a common ancestor, enabling them to build an evolutionary tree for all the species included. Fossils of known ages were then used to date key moments of evolution and diversification on the tree.

Prior to this study the survival success of beetles had been attributed to herbivory - feeding on plants - and the rise of flowering plants in the Cretaceous era, which started some 140 million years ago. However, mapping species numbers onto the evolutionary tree shows that many modern beetle lineages significantly pre-date the appearance of the first flowering plants.

Beetles have displayed an exceptional ability to seize new ecological opportunities and develop a great range of life styles and feeding types, explains Professor Vogler. “Unlike the dinosaurs which dwindled to extinction, beetles survived because of their ecological diversity and adaptability,” he says.

The scientific team says that understanding the evolution of beetles is an important part of understanding the natural world: “With beetles forming such a large proportion of all known species, learning about their relationships and evolution gives us important new insights into the origin of biodiversity and how beetles have triumphed over the course of nearly 300 million years,” said Professor Vogler.

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