The scientist from the Institute of Plants and Animals Ecology, Russian Academy of Sciences (Ural Branch), has made a description of the giant dear remains, found in the Ural, and has determined their age. Giant deer Megaloceros giganteus originated as a species in the preglacial epoch, lived through the glaciation period and died out about 8-9 thousand years ago after the climate had become warmer. The remains will help to investigate how the giant dear lived and why this species disappeared. The research has been carried out with the help of the Russian Foundation for Basic Research grants 02-04-49431 and ‘The evolution of the mammalian fauna and flora in Western, Central and Eastern Europe during the Pleistocene-Holocene transition (25-10 kyr B.R.)’.
About ten thousand years ago when the glaciation period was already over, the giant or the so- called big-horned deer, contemporary of the mammoth and the wooly rhinoceros, still inhabited the Eurasian plains. They were real giants among ungulate animals: their horns with big blades, which resembled those of the fallow-deer or the elk, reached up to four meters in width. The deer used to pasture on humid meadows and frequently fell a prey to primeval hunters. Then the species has become extinct. Modern scientists are still investigating possible reasons for the giant deer disappearance.
P. A. Kosintsev, a researcher from Yekaterinburg, has studied the remains of the giant deer, found during the last decades in the Middle and South Ural. With the help of A. Lister and A. Stuart, British colleagues from the Natural Environment Research Council (NERC) , P. A. Kosintsev has determined the age of the findings. To this end the scientist used the radiocarbon analysis method with the accelerative mass-spectrometry. It turned out that the animals, the bones of which were dated, perished during the periods when the climate was changing: warm periods were being replaced by the cold ones and vice versa. Although the glaciation period ended about ten thousand years ago, some long periods of the climate cooling down and warming up took place repeatedly. It is very likely that these climatic changes caused the extinction of the giant deer species. An indirect indication that the climatic changes affected the disappearance of the species provides the fact that the bones of the deer were found in the same horizons with the remains of a variety of animals, this proves easy adaptability of the species to various surrounding animal species.
Sergey Komarov | alfa
Flow of cerebrospinal fluid regulates neural stem cell division
22.05.2018 | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Chemists at FAU successfully demonstrate imine hydrogenation with inexpensive main group metal
22.05.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology