They've
been
extinct
for
about
10,000
years,
but
woolly
mammoths
could be
back on
Earth in
just
five
years,
according
to
Japanese
scientists
who plan
to use
frozen
DNA to
resurrect
the
behemoth.
Researchers
from
Japan's
Kinki
University
have
found a
way to
isolate
DNA from
the
frozen
mammoth's
tissue.
Now they
plan to
insert
that DNA
into the
egg
cells of
a
normal,
modern
African
elephant
and then
plant
the
resulting
embryo
into the
elephant's
womb.
After a
600-day
gestation
period,
the
elephant
would
give
birth to
a baby
mammoth.
That
baby
would be
a clone
of that
frozen
mammoth
found in
the
Siberian
tundra
and
believed
to have
died
more
than
10,000
years
ago. The
baby
would
not have
any
genetic
relation
to the
surrogate
mother
that
actually
gives
birth to
it.
Unlike
dinosaurs
and
other
extinct
animals
whose
remains
have
been
fossilized,
bodies
of
several
mammoths
were
frozen
under
ice,
preserving
their
muscle,
skin
and,
most
important,
their
DNA. The
massive
creatures
are
believed
to have
once
grazed
in large
herds
across
Asia and
North
America.
Whatever
caused
their
species
to die
out is a
huge
point of
contention
among
paleontologists.
Some
believe
it was
the
onset of
human
hunters
or
climate
change
that led
to the
mammoths'
demise.
"After
the
mammoth
is born,
we'll
examine
its
ecology
and
genes to
study
why the
species
became
extinct
and
other
factors,"
he said.
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