Thursday, August 9, 2018

Woolly Mammoths

Why do we humans have such a fascination with woolly mammoths?”
asks Hendrik Poinar.
Woollys are a quintessential image of the Ice Age;
We seem to have a deep connection with them as we do with elephants,” says Poinar in this sci-fi worthy talk . I have to admit there's a part of the child in me that wants to see these majestic creatures walk across the permafrost of the North. It may be even now, thanks to a new development. An incredible discovery on the permafrost of an archipelago in the Arctic Ocean
propelled the conversation of de-extincting mammoths forward.
Blood, possibly in liquid form and muscle tissue was discovcered
inside the well-preserved body of a 10,000 to 15,000 year old female woolly mammoth ~ to help ignite our imagination. Bring back the woolly mammoth!

The Woolly Mammoths lived in the north closer to the glaciers
of the Ice Ages from Alaska through Canada
and east to the Great Lakes and New England.

Facts About the Magnificent Woolly Mammoth
Contrary to common belief, the woolly mammoth was hardly mammoth in size. They were roughly about the size of modern African elephants. A male woolly mammoth 's shoulder height was 9 to 11 feet tall and weighed around 6 tons. Its cousin the Steppe Mammoth was perhaps the largest one in the family ~ growing up to 13 to 15 feet tall.

The ears of a woollly mammoth were shorter than the modern elephants' ears. Like their thick coat of fur, their shortened ears were an important cold-weather adaptation because it minimized frostbite.

Scienists can discern a woolly mammoth's age from the rings of its tusk ~ like looking at the rings of a tree. The tusk yields more finite detail than a tree trunk ~ revealing a major line for each year and a line for the weeks and days in between. Scientists can even tell the season when a woolly mammoth died as the darker increments correspond to summers. The thickness or thinness of the rings indicate the health of the mammoth during that time; the tusk would grow during favourable conditions.

The woolly mammoth was not the only 'woolly' type of animal. The woolly rhinoceros co-existed with the woolly mammoth. Like the woolly mammoth, the rhino adapted to the cold with a furry coat...and was depicted by human ancestors in cave paintings (becoming extinct around the same time).

By the end of the Ice Age about 10,000 years ago, much of the world mammoths had succumbed to Climate Change and predation by humans. The exception was a small population of woolly mammoths that lived on Wrangel Island off the coast of Siberia until 1700 BC. Subsisting on limited resources, Wrangel Island mammoths grew to much smaller sizes than their Woolly Mammoth relatives and were often referred to as dwarf elephants. Fortunately for scientists, the Woolly Mammoths have been preserved by permafrost.

Cave paintings drawn by ice age humans, show the important relationship they had with the woolly mammoths. The Rouffignac cave in France has 158 depictions of mammoths, making up about 70% of the represented animals dating back to an earlier period. There is also evidence of the use of bones and tusks by humans to create portable art objects, shelters, tools, furniture and even burials.

Today the hunt is on for woolly mammoth tusks in the Arctic Siberia. Due to global warning, the melting permafrost has begun revealing these hidden ivory treasures for a group of local tusk-hunters to find and sell. A tusk can range from 10 to 13 feet in length and a top-grade mammoth tusk is worth around $400 per pound. Mammoth ivory, unlike elephant ivory, is legal.
Their large curved tusks may have been used for fighting.
They may have also been used as digging tools for foraging meals
of shrubs, grasses, roots and other small plants under the snow.

The first fully documented woolly mammoth skeleton was discovered in 1799. It was brought to the Zoological Museum of the Zoological Institute of the Russian Academy of Science in 1806 where Wilhelm Gottlieb Tilesius put the pieces together Basing his task off an Indian elephant skeleton, Tilesius was successful in reconstructing the first skeleton of an extinct animal except for one error. He put the tusks in the wrong sockets, so that they curved outward instead of inward.

The coat of a woolly mammoth consisted of a guard of foot long hairs and an undercoat of shorter hairs. Preserved mammoth hair looks orange in colour; however, researchers believe the pigment was changed because of prolonged burial in the ground.

Even a kid can discover a preserved mammoth. In September 2012 in Russia, an 11-year-old boy named Yevgeny Zhenya Saliner happened upon an extremely well-preserved woolly mammoth carcass while walking his dogs. The remains were of a 16-year-old male woolly mammoth that died about 30,000 years ago. The discovery helped scientists conclude that the large lumps on a mamoth back were extra stores of fat to help it survive winters. The mammoth was nicknamed Zhenya.

It was here, that in May 2007 a reindeer herder stumbled on the corpse
of a perfectly preserved female baby woolly mammoth
which he named Lyuba after his wife.

The final resting place of woolly mammoths was Wrangel Island in the Arctic. Although most of the woolly mammoth population died out by 10,000 years ago, a small population of 500 to 1,000 woolly mammoths lived on Wrangel Island until 1650 BC. That is only about 4,000 years ago! For context, Egyptian pharoahs were midway through their empire and it was about 1,000 years after the Giza pyramids were built. The reason for the demise of these woolly mammoths are unknown.

Opinion of Hendrik Poiner:
Scientists always thought that because the Mammoths roamed
such a large territory from Western European Woolly Mammoths,
that North American Woolly Mammoths were simply a side-show
of no particular significance to the evolution of the species.

Future Hope
Because Woolly Mammoths went extinct recently and related
more closely to modern elephants,
scientists may be able to harvest the DNA and its incubated fetus
in a living process known as de-extinction.
A team of researchers recently announced they have decoded
the complete gnomes of two 40,000 year-old woolly mammoth species.

Written by Merle Baird-Kerr...August 4, 2018
Your comments welcome: mbairdkerr@bell.net or

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