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It is not known whether pterosaurs practiced any form of parental care, but their ability to fly as soon as they emerged from the egg and the numerous flaplings found in environments far from nests and alongside adults has led most researchers, including Christopher Bennett and David Unwin, to conclude that the young were dependent on their parents for a relatively short period of time, during a period of rapid growth while the wings grew long enough to fly, and then left the nest to fend for themselves, possibly within days of hatching.
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is and known
Even the knowledge that she was losing another boy, as a mother always does when a marriage is made, did not prevent her from having the first carefree, dreamless sleep that she had known since they dropped down the canyon and into Bear Valley, way, way back there when they were crossing those other mountains.
All such imitations of negative quality have given rise to a compensatory response in the form of a heroic and highly individualistic humanism: if man can neither know nor love reality as it is, he can at least invent an artistic `` reality '' which is its own world and which can speak to man of purely personal and subjective qualities capable of being known and worthy of being loved.
In his stead is a milquetoast version known as `` the corporation ''.
On April 11th he wrote an open letter in The Advocate, making it known `` to the world that Jas. W. Robinson is by his own admission a base liar and a slanderer ''.
What is not so well known, however, and what is quite important for understanding the issues of this early quarrel, is the kind of attack on literature that Sidney was answering.
This was accordingly done, and the plight of the grateful Mrs. Morris was much relieved as a result of the generous loan, the amount of which is not known.
In spite of the armistice negotiated by Amadee two years earlier, the war between Bishop Guillaume of Lausanne and Louis of Savoy was still going on, and although little is known about it, that little proves that it was yet another phase of the struggle against French expansion and was closely interwoven with the larger conflict.
Since more is known about Quiney than about any other acquaintance of Shakespeare in Stratford, his career may be followed to its sudden end in 1602.
In light of the scholarly reappraisals engendered by the higher criticism this is a most remarkable statement, particularly coming from one who was well known for his antifundamentalist views.
Because of the means of publication -- science-fiction magazines and cheap paperbacks -- and because dystopian science fiction is still appearing in quantity the full range and extent of this phenomenon can hardly be known, though one fact is evident: the science-fiction imagination has been immensely fertile in its extrapolations.
Easily the best known of these three novels is The Space Merchants, a good example of a science-fiction dystopia which extrapolates much more than the impact of science on human life, though its most important warning is in this area, namely as to the use to which discoveries in the behavioral sciences may be put.
and it should be far better known than it is.
The story of the fatal crash is not fully known.
Now Richards, of course, is known as a deep thinker as baseball managers go.
Since little is known about autism, and almost nothing has been written for the layman, we'd like to share one experienced mother's comments.
First of all, it is now known that Pope John sees the renewal and purification of the Church as an absolutely necessary step toward Christian unity.
Of the handful of painters that Austria has produced in the 20th century, only one, Oskar Kokoschka, is widely known in the U.S..
It is known that at least five towns ( Barrington, Bristol, Narragansett, Newport and Westerly ) place some value on some boats for tax purposes.
As I have repeatedly stated, this provision is much more restrictive than the general law, popularly known as the Buy American Act.
This is a phenomenon familiar to all radio listeners, resulting from reflection of skywave signals at night from the ionized layer in the upper atmosphere known as the ionosphere.
is and whether
Ratified in the Republican Party victory in 1952, the Positive State is now evidenced by political campaigns being waged not on whether but on how much social legislation there should be.
Work is under way to see whether new restraining devices should be installed on all nuclear weapons.
One way to determine whether we have so dangerous a technology would be to check the strength of our society's organs to see if their functioning is as healthy as before.
In any event, whether society may have cancer, or merely a virus infection, the `` disease '', we shall find, is political, economical, social, and even medical.
Hence the prime issue, as I see it, is whether a democratic or free society can master technology for the benefit of mankind, or whether technology will rule and develop its own society compatible with its own needs as a force of nature.
But the problem is one which gives us the measure of a man, rather than a group of men, whether a group of doctors, a group of party members assembled at a dinner to give their opinion, or the masses of the voters.
What is simply an opinion formed in defiance of the laws of human probability, whether or not it is later confirmed, has become by September of the election year `` a firm conviction ''.
Even if people do, in a not far distant future, begin to read one another's minds, there will still be the question of whether what you find in another man's mind is especially worth reading -- worth more, that is, than what you can read in good books.
When decision makers act within this frame they determine whether a claim put forward in the name of religion is to be accepted by the larger community as appropriate to religion.
Community decision makers must make up their minds whether a claim is acceptable to the larger community in terms of prevailing expectations regarding members of nation states.
The relatively long and often colorful selections in this anthology enable the reader to become genuinely absorbed in what is said, whether he responds with anger or applause.
Most students of literature, whether they call themselves scholars or critics, are ready to argue that it is possible to understand literary works as well as to enjoy them.
It is most important that we recognize the law of love as being unbreakable in all personal relationships, whether individually, socially or as between whole nations of people.
Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.
Mortality is the pacing of a brief and dangerous watch, and to all sentinels, whether at Elsinore or on the battlements at Mycenae, the coming of dawn has its breath of miracle.
The other reason ( and the one with which I am here concerned ) is that one thus becomes inclined to inquire of any opinion, or change of opinion, whether it represents the wisdom of experience or is only the result of the difference between youth and age which is as inevitable as the all too obvious physical differences.
But whether the murder of El Benefactor in Ciudad Trujillo means freedom for the people of the Caribbean fiefdom is a question that cannot now be answered.
The question left by the election is whether West Germany veers slightly toward more firmness or more flexibility.
Although the United States and the U.S.S.R. have been arguing whether there shall be four, five or six top assistants, the most important element in the situation is not the number of deputies but the manner in which these deputies are to do their work.
But far from being concerned about whether or not Russia will have achieved Utopia by 1980, the world is watching Moscow today primarily for clues as to whether or not there will be nuclear Armageddon in the immediate future.
is and pterosaurs
Pterodactylus (, from the Greek πτεροδάκτυλος, pterodaktulos, meaning " winged finger " ) is a genus of pterosaurs, whose members are popularly known as pterodactyls.
The term " dinosaur " is properly restricted to only those reptiles descended from the last common ancestor of the groups Saurischia and Ornithischia ( clade Dinosauria, which includes birds ), and current scientific consensus is that this group excludes the pterosaurs, as well as the various groups of extinct marine reptiles, such as ichthyosaurs, plesiosaurs, and mosasaurs.
It is generally agreed though that non-pterodactyloid pterosaurs had a broader uro / cruropatagium, with pterodactyloids only having membranes running along the legs ; Pteranodon in particular might have developed / redeveloped an uropatagium, given the structure of the tail.
The first and perhaps best known of these is the distinctive backward-pointing crest of some Pteranodon species, though a few pterosaurs, such as the tapejarids and Nyctosaurus sported incredibly large crests that often incorporated keratinous or other soft tissue extensions of the bony crest base.
Pterosaur's hip sockets are oriented facing slightly upwards, and the head of the femur ( thigh bone ) is only moderately inward facing, suggesting that pterosaurs had a semi-erect stance.
A study of pterosaur eggshell structure and chemistry published in 2007 indicated that it is likely pterosaurs buried their eggs, like modern crocodiles and turtles.
Because pterosaur anatomy has been so heavily modified for flight, and immediate " missing link " predecessors have not so far been described, the ancestry of pterosaurs is not well understood.
The precise relationships between pterosaurs is still unsettled.
Pteranodon (; from Greek πτερ-" wing " and αν-οδων " toothless ") is a genus of pterosaurs which included some of the largest known flying reptiles, with wingspans over.
If Q. northropi is complete enough to be distinguished from other pterosaurs ( i. e., if it is not a nomen dubium ), Hatzegopteryx may represent the same animal.
It is likely that huge pterosaurs such as Q. northropi would have had very large, transcontinental ranges, making its presence in both North America and Europe unsurprising.
The term wingspan, more technically extent, is also used for other winged animals such as pterosaurs, bats, insects, etc., and other winged aircraft such as ornithopters.
Rhamphorhynchus (), " beak snout ", is a genus of long-tailed pterosaurs in the Jurassic period.
This growth rate is much slower than the rate seen in large pterodactyloid pterosaurs such as Pteranodon, which attained near-adult size within the first year of life.
Contemporary fossils of Cretaceous Period plants and animals are included in the exhibition, including two species of pterosaurs, providing a snapshot of a prehistoric ecosystem in what is now the modern Patagonia region of Argentina.
A tooth belonging to Irritator still inserted into a fossil neck vertebral column of a pterosaur, indicates that Irritator ate pterosaurs as well, although it is not known if it actively hunted these animals, or simply scavenged the remains.
This condition is also present in other non-avian theropods, birds, and pterosaurs.
In the original film, the character's name is Kong, a name given to him by the inhabitants of " Skull Island " in the Pacific Ocean, where Kong lives along with other over-sized animals such as a plesiosaur, pterosaurs, and other dinosaurs.
The Yixian preserves the first Jehol dinosaurs and pterosaurs ( which have not been found in the older Dabeigou Formation ), and the first major radiation of birds ( only one bird species is known from the Dabeigou ).
* In the extinct flying pterosaurs, it is also the skin forming the surface of the wing.
This degree of dental occlusion is the strongest known among pterosaurs.
Within the standard hypothesis that the Dinosauromorpha are the pterosaurs ' close relatives within an overarching Ornithodira, Eudimorphodon is also unhelpful in establishing relationships within Pterosauria between early and later forms because then its multicusped teeth should be considered highly derived, compared to the simpler single-cusped teeth of Jurassic pterosaurs, and a strong indicator that Eudimorphodon is not closely related to the ancestor of later pterosaurs.
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