Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Researchers Reconstruct the Rise of the Woolly Mammoth

02.11.2001


Image: Courtesy of Adrian Lister


Examine any depiction of Ice Age life and you’re likely to find at least one—a woolly mammoth, that is. But popular appeal notwithstanding, the evolutionary history of this prehistoric beast has proved somewhat difficult to pin down. To that end, findings published today in the journal Science provide some much needed insight.

Working from an extensive Eurasian fossil record going back some 2.6 million years, Adrian Lister of University College London and Andrei V. Sher of the Russian Academy of Sciences studied changes in the skulls and teeth of three successive mammoth species (the last of which was the woolly variety) over time. The researchers documented long stretches of gradual change in all three species, with different features changing at different times. Intriguingly, however, the advanced features—a number of which represent adaptations to grazing—seem to have emerged first in Siberia and only later spread to Europe.

Lister and Sher note that Siberia experienced periglacial conditions earlier, more intensely and for a longer duration than did Europe. "Siberia thereby provided a continuing source of grazing-adapted mammoths, which we suggest acted as a repeated source of evolutionary advancement into periodically glaciated Europe," they write. The authors further report that the origins of the mammoth species are not particularly clear cut. Thus they may represent populations whose evolutionary paths never fully diverged


Kate Wong | Scientific American
Further information:
http://www.sciam.com/news/110201/1.html

More articles from Life Sciences:

nachricht Dead cells disrupt how immune cells respond to wounds and patrol for infection
21.05.2019 | University of Sheffield

nachricht New study shows: Tropical corals reflect ocean acidification
21.05.2019 | Leibniz-Zentrum für Marine Tropenforschung (ZMT)

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Self-repairing batteries

UTokyo engineers develop a way to create high-capacity long-life batteries

Engineers at the University of Tokyo continually pioneer new ways to improve battery technology. Professor Atsuo Yamada and his team recently developed a...

Im Focus: Quantum Cloud Computing with Self-Check

With a quantum coprocessor in the cloud, physicists from Innsbruck, Austria, open the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy physics. The research groups led by Rainer Blatt and Peter Zoller report in the journal Nature how they simulated particle physics phenomena on 20 quantum bits and how the quantum simulator self-verified the result for the first time.

Many scientists are currently working on investigating how quantum advantage can be exploited on hardware already available today. Three years ago, physicists...

Im Focus: Accelerating quantum technologies with materials processing at the atomic scale

'Quantum technologies' utilise the unique phenomena of quantum superposition and entanglement to encode and process information, with potentially profound benefits to a wide range of information technologies from communications to sensing and computing.

However a major challenge in developing these technologies is that the quantum phenomena are very fragile, and only a handful of physical systems have been...

Im Focus: A step towards probabilistic computing

Working group led by physicist Professor Ulrich Nowak at the University of Konstanz, in collaboration with a team of physicists from Johannes Gutenberg University Mainz, demonstrates how skyrmions can be used for the computer concepts of the future

When it comes to performing a calculation destined to arrive at an exact result, humans are hopelessly inferior to the computer. In other areas, humans are...

Im Focus: Recording embryonic development

Scientists develop a molecular recording tool that enables in vivo lineage tracing of embryonic cells

The beginning of new life starts with a fascinating process: A single cell gives rise to progenitor cells that eventually differentiate into the three germ...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

A simple, yet versatile, new design for chaotic oscillating circuitry inspired by prime numbers

22.05.2019 | Power and Electrical Engineering

Synthesis of helical ladder polymers

21.05.2019 | Materials Sciences

Ultra-thin superlattices from gold nanoparticles for nanophotonics

21.05.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>