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Showing posts with label arctic. Show all posts
Showing posts with label arctic. Show all posts
Sunday, 21 February 2016
Polar Bear
Saturday, 19 December 2015
Reindeers | #SciSparksAdvent
For obvious reasons - reindeers are mostly known for their link to Santa Claus and make the ideal sleigh pullers. Aside from Christmas, they're more usually seen during their mammoth Arctic migration - during this, North American herds may travel for more than 5,000km.
Reindeers are also the only kind of deer where both males and females sport antlers, although they still can reach epic proportions in male reindeers.
Throughout the year, Reindeer mostly eat grass but they also take a fancy to virtually any other plant. In the winter - they often eat 'Reindeer lichen', moss and fungi. They are also very sociable creatures, living in groups of 10-100 groups.
As far as breeding is concerned, they mate in October and have a pregnancy of 230 days and give birth in May or June. When they do so, they only give birth to one baby who becomes fully mature at 2 years old. In the wild, they live to between 12 and 15 years old, although some live until they're 20.
Reindeers are also the only kind of deer where both males and females sport antlers, although they still can reach epic proportions in male reindeers.
Throughout the year, Reindeer mostly eat grass but they also take a fancy to virtually any other plant. In the winter - they often eat 'Reindeer lichen', moss and fungi. They are also very sociable creatures, living in groups of 10-100 groups.
As far as breeding is concerned, they mate in October and have a pregnancy of 230 days and give birth in May or June. When they do so, they only give birth to one baby who becomes fully mature at 2 years old. In the wild, they live to between 12 and 15 years old, although some live until they're 20.
Like many animals, they're hunted and have been hunted since the stone age. In northern regions in particular, they eat the meat and use the fur, skin, antlers and bones for various products. The reindeer was first domesticated around 3,000 years ago in Siberia and Scandinavia. Since then, they've been used for transport and pulling sleds. Because they can live in very cold climates - this makes them the ideal animals for the job.
Tuesday, 8 December 2015
The Changing Arctic | #SciSparksAdvent
The Arctic is warming twice as fast as the Earth as a whole. The Arctic is vast - it spans about 11 square kilometres, yet around 4 million people live there. The harsh environment brings extreme conditions, winter darkness and very brief summers. The issue of climate change is one that's still being debated but one thing's for sure, climate change in the Arctic is real. Mathematical models produced show that in 100 years we could be looking at an Arctic, 3-6C higher than today. The spring snow thaw is now happening earlier, on top of warmer winters it's putting many species' lives at risk. As far as soils are concerned, the Arctic has a complete range - from rocky mineral soils and mountain areas to polar deserts. 22% of the Northern hemisphere has permafrost (snow that doesn't thaw throughout the year), the Arctic has most of the permafrost. In some locations the permafrost is 3 million years old and even about 1.5km thick. However because of climate change some of this permafrost is melting - along with its 3 million year history. Towards the south throughout much of the tundra (ecosystems where tree growth is limited because of low temperatures) when the permafrost thaws, surface ponds drain away. Although this doesn't sound like much of an issue, the ponds host billions of species such as insect larvae, migratory birds and the predators that feed on them. Having said that, in other areas, further North, the permafrost thaw can lead to the formation of new ponds - this of course increases the biodiversity. We can also learn more about the organisms that lived long ago, how they coped with climate change and we can learn more about our natural world. Above all, the Arctic is facing a new challenge - global warming and if we continue to lower our carbon dioxide emissions and work towards reducing climate change, it's not too late.
Labels:
#SciSparksAdvent,
arctic,
carbon dioxide,
change,
climate,
emissions
Monday, 7 September 2015
Polar Bears!
| Baby Polar Bear |
As far as food is concerned, the Polar Bear's favorite food is the ringed seal. They lie in wait for them as the seals appear at the surface of the water to breathe at openings in the ice. Having said that, they'll have more or less anything that's nutritious and doesn't take too much energy to catch. The bears also have an astounding sense of smell - hence the reason why the cameraman below got a little caught up!
They also use their perfect adaptions to make the most out of life on the ice. They use their large front paws which are slightly webbed to swim around the ice. Their thick coat of insulated fur means that the bear can live an extremely comfortable life in one of the planet's coldest environments. Unlike many other bears they also have fur which grows on the underside of their paws to increase their grip on the ice.
Here's some rather crazy footage of a Polar Bear getting rather too close to a Scottish Wildlife cameraman.
Saturday, 2 November 2013
"There has been nothing but a common desire to work for the common good" ~ Captain Scott
Today we went to the Polar Research Institute's Museum in Cambridge which is a free museum set up near the University's Chemistry department.
The Museum focuses on the people that live in the arctic area and expeditions that have taken place to get there. Antarctica is around twice the size of Australia, therefore more than double the size of Europe.
One famous explorer, Robert Falcon Scott went to the south pole in 1901 as part of the Discovery expedition. He was born at Outlands on 6th June 1868 to John and Hannah Scott. Throughout his childhood he had many weaknesses viewed as shameful in his era, for example his uneasiness at the sight of blood and of suffering in animals. He tried hard to conceal these problems, but he never really overcame these problems. One of his biographers mention that as a boy he was "shy and deffident, small and weakly for his age, lethargic, backward and above all, dreamy". This considering he had a good childhood with a good strong family around him.
Robert F. Scott joined his first seagoing ship in August of 1883 at the tender age of thirteen. The ship that he set sail on, HMS Boadicea was the first time that he earned money, as he worked as a Midshipman, earning about £30 a year. The training was intense, as Admiral Sir William Jameson wrote that midshipmen were "up aloft in all sorts of weather and away for long hours in boats under oars and sail. In spite of rigid barriers, young officers learnt the lower deck point of view in a way which is often difficult to achieve in these more democratic days"
To find out more click here: http://www.south-pole.com/p0000089.htm
Labels:
Antarctica,
arctic,
discovery,
expedition,
polar,
pole,
Scott,
snow
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