Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2012        Go!    
 
 
April 24, Monday 2017 9:04 AM       

       HEADLINES: Woman, three daughters mowed down by train                                              Vengara bypolls will decide who is ‘right’, says Joy Mathew                                              Money power and Power Mani behind Munnar encroachment, says Kummanam                                              KRK says sorry for comparing Mohanlal to ‘Chota Bheem’                                              M M Mani is shame for state, says Sudheeran                                              TN CM meets protesting farmers in Delhi                                              ISRO to increase launch frequency to 12 per year                                              Mega defence deals likely during PM's trip to Israel                                              Modi to address all BJP CMs today                                              TN farmers suspend protest after CM's assurance                                              Pakistani man eats leaves for 25 years, never falls ill: Report                                              PPP to launch movement for Sharif's resignation                                              US accuses TCS, Infosys of violating H-1B visa norms                                              It is sad that India is no. 3 in doping: Mary Kom                                              Dhoni seals 6-wkt victory for Pune against Hyderabad                                              Bowlers deliver win for Mumbai                                              No required rate too high if you keep calm: Dhoni                                              Bopanna-Cuevas pair wins Monte Carlo Masters                                              Kaumudi Facebook
       SCI&TECH Next Article: Note 7 debacle may hit Samsung's India rev by Rs 6,500 cr: CMR  
       Mysterious 'Higgs Bison' species identified
 
         Posted on :18:13:42 Oct 19, 2016
   
A A
       Last edited on:18:13:42 Oct 19, 2016
         Tags: Mysterious 'Higgs Bison' species, identifie
 
MELBOURNE: A mysterious hybrid species, recorded by Ice Age cave artists in great detail more than 15,000 years ago and dubbed as the Higgs Bison due its elusive nature, was the ancestor of the modern European bison, scientists who analysed ancient DNA have discovered.
 
The mystery species originated over 120,000 years ago through the hybridisation of the extinct Aurochs (the ancestor of modern cattle) and the Ice Age Steppe Bison, which ranged across the cold grasslands from Europe to Mexico.
 
Research led by the Australian Centre for Ancient DNA (ACAD) at the University of Adelaide showed that the mystery hybrid species eventually became the ancestor of the modern European bison, or wisent, which survives in protected reserves between Poland and Belarus.
 
"Finding that a hybridisation event led to a completely new species was a real surprise - as this isn't really meant to happen in mammals," said Alan Cooper, ACAD Director.
"The genetic signals from the ancient bison bones were very odd, but we weren't quite sure a species really existed - so we referred to it as the Higgs Bison," said Cooper.
 
The team, including researchers from the University of California, Santa Cruz (UCSC), studied ancient DNA extracted from radiocarbon-dated bones and teeth found in caves across Europe, the Urals, and the Caucasus to trace the genetic history of the populations.
 
They found a distinctive genetic signal from many fossil bison bones, which was quite different from the European bison or any other known species.
Radiocarbon dating showed that the mystery species dominated the European record for thousands of years at several points, but alternated over time with the Steppe bison, which had previously been considered the only bison species present in Late Ice Age Europe.
 
"The dated bones revealed that our new species and the Steppe Bison swapped dominance in Europe several times, in concert with major environmental changes caused by climate change," said Julien Soubrier from the University of Adelaide.
 
"French cave researchers told us that there were indeed two distinct forms of bison art in Ice Age caves, and it turns out their ages match those of the different species," said Soubrier.
 
The cave paintings depict bison with either long horns and large forequarters (more like the American bison, which is descended from the Steppe bison) or with shorter horns and small humps, more similar to modern European bison.
 
"Once formed, the new hybrid species seems to have successfully carved out a niche on the landscape, and kept to itself genetically," said Cooper.
 
"It dominated during colder tundra-like periods, without warm summers, and was the largest European species to survive the megafaunal extinctions," he said.
 
"The modern European bison looks genetically quite different as it went through a genetic bottleneck of only 12 individuals in the 1920s, when it almost became extinct," Cooper said.
 
The study was published in the journal Nature Communications.
 
A A
       SCI&TECH
Next Article: Note 7 debacle may hit Samsung's India rev by Rs 6,500 cr: CMR
 
 
SCI&TECH HEADLINES
Offensive WhatsApp posts can land group admin in jail  
Facebook for 'everyone' and not just high end: Zuckerberg  
Google Earth re-invented for new era  
NASA images show how India looks from space at night  
Signs of life detected below world's deepest point  
'iPhones assembly in Bengaluru by Apple in less than a month'  
Five astronauts assigned to future ISS mission: NASA  
Trump plans to send humans to Mars  
First patient cured of rare blood disorder'  
Indian-American teen wins top science award worth USD 250,000  
'New extension may improve inflight WiFi'  
Frogs can see colour in extreme darkness: study  
NASA may put astronauts on deep space test flight  
Juno to remain in current orbit around Jupiter: NASA  
US man receives new face from donor  
Over 100 new potential planets spotted  
ISRO to launch record 104 satellites on Feb 15  
Now, video-makers can live stream on YouTube  
Music, drugs stimulate same part of brain: study  
Facebook adds tool for helping in times of crisis  
Moon may have formed from collision of tiny 'moonlets'  
China to set up world's highest altitude telescopes in Tibet  
NASA to launch two robotic probes to study early solar system  
After Mars, ISRO eyes Venus and Jupiter  
New, rare galaxy spotted over 359 mln light-years away  
 
Do you think Chief Minister Pinarayi Vijayan triggered holy cross row?
yes
 
no
 
don't know
 
 
 
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]kaumudi.com
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy