A Deadly combination of a powerful bite, strong teeth and chewing was allowed a giant bird of prey, T. rex — to literally break the bones of their victims, scientists have found. Bones have nutritional internal cavity filled with marrow and phosphate salts. But to get access to these treats, most bone crushers should be able to bring the jaws together in order to crack the outer protective layer of bone. Some carnivorous mammals, such as spotted hyenas and gray wolves, so I can.
But among the living reptiles lovers bones do not meet, because their upper and lower teeth do not converge, not close so that they could hold. Most modern carnivorous reptiles just swallow the dice to get the nutrients.
The Tyrannosaurs, including T. rex, had teeth similar to mammals, but fossil evidence indicates that dinosaurs somehow crushed the bones of prey. To find out how, anatomist Paul Gignac from the University of Oklahoma in Tulsa and paleontologist Gregory Erickson of Florida state University in Tallahassee studied the fossil evidence of behavior of these beings behind a Desk. Together they also studied the bite force, the only living dinosaurs — birds and crocodiles, close relatives of dinosaurs. Based on the analysis failed to estimate the pressure force of the teeth of dinosaurs.
The T. rex could break bones, scientists say, thanks to the powerful bite of 34 000 Newtons (more than two times higher than that of crocodiles, the strongest of all living pokusaj) and pressure at the tips of the teeth of about 3,000 megapascals. Strong pressure teeth were allowed to create cracks that weaken bones. T. rex also repeatedly bitten in one place, using their own advantages to derive maximum benefit from its extraction.
What do you think? Tell us in our
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
A strange cloud on Mars was water vapor, not eruption
the day before Yesterday about the strange cloud that appeared above the surface of the red planet, reminiscent of a train. The mysterious photo was published by the European space Agency, it took the Orbiter Mars Express. The tra...
Scientists from Stanford have figured out how to get from carbon dioxide in the hydrocarbon fuel
Emissions of carbon dioxide in the atmosphere over the last several decades has greatly crippled the ecology of our planet. That is why more and more developments in the field of creation of means to reduce carbon dioxide emission...
The feature of the surface of the asteroid Ryugu jeopardizes the mission, the Japanese probe
Discovered a feature of the surface of the asteroid Ryugu casts doubt on success of mission of the Japanese space probe "Hayabusa-2", whose main purpose is to collect samples of soil. We have previously reported that the surface o...
On the surface of one of Saturn's moons, scientists have discovered a strange divorce
Analyzing data gathered by the space probe Cassini space Agency NASA, whose mission staggeringly , the scientists discovered a very interesting detail associated with Dione, the natural satellite of the gas giant Saturn. It turns ...
Why we need to stop confusing human and machine intelligence
We are already accustomed to hearing phrases such as "machine learning" and "artificial intelligence". We think that someone was able to reproduce a human mind inside a computer. This, of course, not true. But part of the reason w...
Tiny octopus-killers reminded about the contamination of oceans
there are a huge number of living creatures of different sizes and types. Scientists are constantly studying them and often make unexpected discoveries. For example, in February 2018, they learned that sea stars living in oceans, ...
Ginkgo Bioworks wants to turn the human cell into a "factory on demand"
For the production of medicines and various products of the chemical and pharmaceutical industries today use huge factories, where hundreds of chemical reactions to create the desired ingredients. But it has long been known that o...
Scientists observe a strange cloud on Mars
for more than a month, the spacecraft of the European space Agency observes a strange cloud-like plume located above the surface of the red planet. Scientists say that the location of the cloud does not change from 13 September – ...
A new modification of the CRISPR can edit up to 50 percent of the genome
Editor of CRISPR genome has become a very important tool in medical research and may ultimately have a significant impact on various areas: from agriculture to treat a whole heap of hereditary diseases. However, it is far from per...
Between string theorists dispute broke out: what if dark energy is not constant?
Harvard physicist Qumran Vafa is one of the strongest supporters of string theory. But this summer, other theorists strings pounced on his last sentence, which may discredit their ideas, based on a decade of the assumption that th...
It turns out that the electron is almost perfectly round. What does this mean for physics?
the Electrons are almost perfectly round. This is revealed in research published recently in the journal Nature. Why is it important? Because more flattened form could hint at the presence of invisible subatomic particles. And so,...
Astronomers have discovered the youngest pulsar in the milky Way
Using data obtained by x-ray space Observatory Chandra space Agency NASA, a group of American astronomers has confirmed the presence of the very young pulsar in our galaxy. The discovery may give researchers new data on the evolut...
An experimental "cocktail" of known drugs extended the life of the living organism 2 times
In the field of anti-aging and creation of new methods of rejuvenation and prolongation of life, provided one is already a lot of experiments. But they are all associated with the development of something new (and therefore expens...
As the coat color of Labrador affects their life expectancy?
the Study, which was published in the journal Canine Genetics and Epidemiology, has shown that chocolate Labrador retrievers often experience health problems and die faster than dogs of the same breed, but with a different coat co...
Discovered the "switch" pleasure from alcohol
One of the key factors of addiction mechanisms in the brain is obtaining positive emotions. For example, the alcohol getting to the brain, affects the ventral tegmental area (ventral tegmental area, VTA), also called the pleasure ...
Ten predictions of Hawking, which he left in the book after his death
the Latest work of Stephen Hawking, which deals with such problems as the existence of God or the possibility of time travel, was presented on Monday his children who tried to finish the book after the death of the British giant o...
New product effectively solves the problem of lack of oxygen in the blood
Oxygen — the basis of our life. There are more susceptible to the lack of tissue is less sensitive. But in any case, the lack of this important element of the authorities (and then entire body) will not last long. In case of...
Under the surface of Mars may be enough oxygen for life
the Ability to find life on Mars has troubled scientists for many years, and recent discoveries only increased the excitement on the subject, we find, at last, life on the red planet or not. And now, a new study in Nature Geoscien...
Gravitational waves may shed light on dark matter
the Future Laser interferometric space antenna (LISA) will be a powerful tool that will allow astronomers to study phenomena such as colliding black holes and gravitational waves moving through space-time. Scientists from the Univ...
Scientists in Australia have discovered a new genetic disease
Daily scientists are looking for methods to combat various diseases. But unfortunately, a new disease is also sometimes found. And, as reported by the editorial Board Еurekalert, recently a group of scientists from the Australian ...
Comments (0)
This article has no comment, be the first!