BBC
News
July 10, 2007
By Paul Rincon, Science Reporter, BBC News
Original Article
A
baby mammoth unearthed in the permafrost of north-west
Siberia could be the best preserved specimen
of its type, scientists have said.
The frozen carcass (with trunk
and eyes still intact) is to be sent to Japan
for detailed study.
The six-month-old female calf was discovered
on the Yamal peninsula of Russia and is thought
to have died 10,000 years ago.
The animal's trunk and eyes are
still intact and some of its fur remains on the
body.
"In terms
of its state of preservation, this is the world's
most valuable discovery."
Alexei Tikhonov, Russian Academy of Sciences
Mammoths
are an extinct member of the elephant family. Adults
often possessed long, curved tusks and a coat of
long hair.
The 130cm (4ft 3ins) tall, 50kg Siberian specimen
dates to the end of the last Ice Age, when the
great beasts were vanishing from the planet.
It was discovered by a reindeer herder in May
this year. Yuri Khudi stumbled across the carcass
near the Yuribei River, in Russia's Yamal-Nenets
autonomous district.
Missing tail
Last week, an international delegation of experts
convened in the town of Salekhard, near the discovery
site, to carry out a preliminary examination
of the animal.
"The mammoth has no defects except that
its tail was bit off," said Alexei Tikhonov,
deputy director of the Zoological Institute of
the Russian Academy of Sciences and a member
of the delegation.
"In terms of its state of preservation,
this is the world's most valuable discovery," he
said.
Larry Agenbroad, director of the Mammoth Site
of Hot Springs research centre in South Dakota,
US, said: "To find a juvenile mammoth in
any condition is extremely rare." Dr Agenbroad
added that he knew of only three other examples.
Some scientists hold out hope that well preserved
sperm or other cells containing viable DNA could
be used to resurrect the mammoth lineage.
Despite the inherent difficulties, Dr Agenbroad
remains optimistic about the potential for cloning.
"When we got the Jarkov mammoth [found
frozen in Taimyr, Siberia, in 1997], the geneticists
told me: 'if you can get us good DNA, we'll have
a baby mammoth for you in 22 months'," he
told BBC News.
Lucrative trade
That specimen failed to yield DNA of sufficient
quality, but some researchers believe it may
only be a matter of time until the right find
emerges from Siberia.
Bringing mammoths back from the dead could take
the form of injecting sperm into the egg of a
relative, such as the Asian elephant, to try
to create a hybrid.
Alternatively, scientists could attempt to clone
a pure mammoth by fusing the nucleus of a mammoth
cell with an elephant egg cell stripped of its
DNA.
But Dr Agenbroad warned that scientifically
valuable Siberian mammoth specimens were being
lost to a lucrative trade in ivory, skin, hair
and other body parts.
The city of Yakutsk in Russia's far east forms
the hub for this trade.
Local people are scouring the Siberian permafrost
for remains to sell on, and, according to Dr
Agenbroad, more carcasses could be falling into
the hands of dealers than are finding their way
to scientists.
Japan transfer
"These products are primarily for collectors
and it is usually illicit," he explained.
"Originally it was for ivory, now it is
everything. You can now go on almost any fossil
marketing website and find mammoth hair for $50
an inch. It has grown beyond anyone's imagination."
Dr Agenbroad added: "Russia says that any
mammoth remains are the property of the Russian
government, but nobody really pays attention
to that."
The Yamal mammoth is expected to be transferred
to Jikei University in Tokyo, Japan, later this
year.
A team led by Professor Naoki Suzuki will carry
out an extensive study of the carcass, including
CT scans of its internal organs.
Mammoths first appeared in the Pliocene Epoch,
4.8 million years ago.
What caused their widespread disappearance at
the end of the last Ice Age remains unclear;
but climate change, overkill by human hunters,
or a combination of both could have been to blame.
One population of mammoths lived on in isolation
on Russia's remote Wrangel Island until about
5,000 years ago.
Paul.Rincon-INTERNET@bbc.co.uk |