
Did he/she know that the person when he/she has a new car he/she always wants still a newer one?
Nose and ears never stop of growing THE cartilaginous fabric, that it forms the nose and the ears, he/she doesn't stop growing not even when the individual becomes adult. Of there because the nose and the ears of a senior one are larger than when it was young. The face also shrinks because the muscles of the mastication atrophy with the loss of the teeth.
What did cause the gigantismo in the Prehistory?
Do the skeletons visas in museums also show the size of the dinossaurosVeja: does he/she Know more» Doubts: does he/she see other questions and Last answers of Doubts» A Spanish restaurant the best of the world would be» Confirmed three deaths for influenza aviária in Azerbaidjão» Discoveries fossils of dinosaur embryo with 190 mi of years» does rare Bacteria cause disease and death more in Ceará BuscaSaiba in the Internet on: Ambient Arqueologia Astronomia Clonagem Space Genetics Paleontology Publications Scientific Saúde Tecnologia Makes its research in the Internet: As the difference of size of the current animals is explained in comparison to the great dinosaurs of the Prehistory?
If something surprises an occasional visitor of a paleontology museum, it is without a doubt the size that you/they possessed some of the most famous animals of the history: the dinosaurs. Its bones, fossils or reproductions, organized to reflect the aspect of its skeleton faithfully, show the these gigantic creatures' dimensions that developed during millions of years, for later if they extinguish mysteriously. The mammals, on the other hand, almost always maintained a discreet size.
The reasons for this difference are still being studied, but one of the theories on the subject bases mainly on the different constitution of its bodies.
Mammals The mammals, that are animal endotérmicos, don't answer well to the hot and tropical climate, since they have difficulties in the hour of liberating the heat that you/they produce. This heat is larger, as larger they go, for this reason they need to have a body reduced to maintain under control this important biological function.
In the tropics, the few mammals that can be classified as really big they prefer to leave at night. The elephants, for its part, use its great ears to liberate more heat to the exterior. In the sea some giant animals exist, as the whale, but they are exceptions fomented by the high offer of victuals. Besides, the water allows to dissipate them well the thermal loads generated by its bodies, as well as sustaining its enormous mass. Same whales and elephants, some of the largest mammals, would only appear in the end of the era Cenozóica, when the climate cooled down.
Dinosaurs The dinosaurs, in compensation, lived in a time in which the hot atmospheres were habitual. Without need of having a very active metabolism, its body didn't have difficulties in following the natural tendency of the gigantismo (you be alive every larger and complex time).
In the beginning of the era Mesozóica, an increase in the amount of the dióxido of carbon in the atmosphere provoked the global heating, creating a perfect atmosphere for the animal exotérmicos. Besides, the abundance of CO2 fomented a larger growth of the plants, that also increased its size. The readiness of a larger amount of victuals and the increase of the temperatures helped the dinosaurs they be she giant.
In spite of all these information it is not still clear if the dinosaurs were endotérmicos, as the mammals, or exotérmicos. The one that one knows is that the fast evolution of the first arcossauros to the great reptiles acted as a powerful selective force in which you/they were favored the hearts adapted to answer well to the demands demanded by the gigantismo. It was necessary to send to the cells enough amounts of nutrients and oxygen. The solution of the heart endowed with four cameras would be ideal for the posterior appearance of the birds, but in the dinosaurs he/she didn't do except continuing favoring the gigantismo.
Frog storm?
When we studied the draughts that meet inside of the storms we see that is not so strange that this happens, since the ascending winds can arrive to 200 km/h, capable to throw for the high any object that has been absorbed. This phenomenon already killed several wing-delta apprentices that, for a trust excess, they flew close too much of a tornado and they ended being pushed its " summit " even, the more than 11 thousand height meters.
To this height the temperatures are so low that any to be I live he/she dies frozen. Some pilots did get to try to come off of the wing-delta to rush in free fall, but the winds were so intense that they were pushed upward in the same way.
In spite of being a very rare phenomenon the " rain " of frogs, toads and other small animals as fish and small lizards it was already registered in several places of the world. But he/she doesn't begin to think in biblical plagues because the fall of the sky of these unfortunate bugs can be explained easily scientifically.
The cause actually is very simple. The forts currents ascendancies of air that we found in the tornados or in the storms of high intensity they can absorb or to push upward any object or animal that it has not been sufficiently guarded against to seek a refuge. For this reason nobody hears to speak in toupeiras rain or rabbits, that seek shelter quickly in case of storm.
Once pushed for the nucleus of the storm or tornado, the ascending currents maintain them inside of the clouds, being whipped by strong draughts until that the storm loses intensity. There then, everything that had been absorbed by the storm it gives in the face of the law of the gravity and it drops, creating a true " rain ".