They are the primitive air breathers, such as lungfish, gar and many amphibians that still possess gills.
Photons were, indeed, produced in great numbers by the mutual annihilation of the primitive particles and antiparticles.
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The primitive fish mouth straining for water and finding it as my son releases it in the shallows.
In northern Albania, the primitive infrastructure is creaking, though a new refugee camp is going up farther south.
The primitive "Avebury Stone Circle, Wiltshire" (1945) emerges from a fog, the grazing sheep as archaic as the megaliths.
Compared with the primitive prosthetics of my youth, modern prosthetics are technological marvels.
The primitive nuclear device tested by North Korea in 2006 is estimated to weigh more than 1, 500 kilograms (3, 307 pounds).
There you would have passed by one of the primitive mortars used by the Harel Brigade in the battle for Jerusalem.
It contains details so fine that scientists will be able to see how the primitive feathers were attached to the dinosaur's body.
Stem cells are the primitive master cells found in most tissues that help generate more-specialized cells that perform most functions inside the body.
The combination of features indicates that the primitive pterodactyls evolved relatively quickly, and that certain groups of features changed at the same time.
Mowbray has often complained of the primitive training facilities at Hibs, with his young players using muddy public parks to prepare for matches.
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Intermediate technology has meant many things to many people as a type of technology which lies in between the primitive technology and sophisticated technology.
No doubt the thrill of "the heart of darkness" was part of that, but I hope it was more than the lure of the primitive.
Eventually, when the pores closed completely, the primitive cells would have had a sodium pump that could power their cellular reactions, enabling more complex life to form.
According to Dr Smit, the multiple layers were the result of waves from the impact sloshing around in the primitive Gulf of Mexico and passing over individual sites several times.
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In the fort's courtyard are several small wooden boats and traditional barasti (palm-leaf) houses, including the primitive Al Kaimah, and the summerhouse Al Areesh with traditional wind-tower (barajeel) "air conditioning".
Two key inspirations are what Donald describes as "the primitive, soulful way of cooking" over fire in Uruguay, and the grilling wizard Victor Arguinzoniz, of Asador Etxebarri, in the Basque Country.
At its peak, hundreds of firms across the country were making something like two million bicycles a year, which was an astonishing number at the time given the primitive state of mass production.
Just as the primitive man was confused by and fearful of storms and earthquakes and drought and disease, progressives are befuddled by the rise and fall of industries, booms and recessions, wealth and poverty.
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Which is why a week like the one just past is such a sobering reminder that we are always just an unanticipated disaster away from a trip into the primitive America that existed before.
As they report in the Proceedings of the Royal Society, the 160m-year-old Darwinopterus, which has been dug up in Liaoning Province, catches the flying reptiles in transition between the primitive, long-tailed forms exemplified by Rhamphorhynchus and the advanced, almost tailless creatures typified by Pteranodon.
He thus put together a collection of apparatus that would not have disgraced the set of a mad-scientist horror film, and filled it with a mixture of methane, ammonia, hydrogen and water vapour that matched contemporary ideas of what the primitive terrestrial atmosphere had been composed of.
John Erickson makes something of the comparison between the great tsarist offensive in 1916 under Brusilov and Zhukov's operation in 1944 to clear the Germans from Belarus, showing in the process that the armies of both wars were not the primitive, poorly led, forces often depicted in western literature.
The Central Bank of Iraq recently broadened the range of tactics it uses to mop up excess liquidity in the system and maintain the dinar's de facto peg to the dollar, which, given the primitive state of Iraq's financial system, is the best mechanism the bank has to keep prices stable.
It is as though we are determined to regress to the most primitive condition of existence in the animal world, of the survival of the fittest.
The only visible safety measures, at least in the more primitive mines, are frequent offerings of cigarettes and coca leaves to the diablo of the mine, its crudely sculpted guardian demon.
Fairly or not, Blackshaw has come to represent the "academic" side of the acoustic guitar (as opposed to the raw American Primitive sound of the late Jack Rose), so it's a surprising and somewhat ballsy move to put aside the full, resonant sound of a 12-string acoustic for the staccato feel of the electric guitar, with all the rock baggage that instrument carries.
Now, in the infectiously primitive talking-animal world of "Fantastic Mr. Fox", he's become an ironic realist.
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