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Grizzly Bears
But for all its physical power, the grizzly is vulnerable. It breeds slowly and requires huge areas of undisturbed wilderness. Protecting the great bear as human use of the wild country increases is proving a difficult challenge. Mountain bear, coastal bear Long ago, grizzlies were numerous in the prairies, following the great bison herds. Sadly, they are now extinct west of the Rockies foothills, and the Rockies themselves don't provide high quality bear habitat. Like black bears, grizzlies face a constant struggle to put on sufficient weight for their winter sleep. In the mountains, they leave their dens from March onwards and search for avalanche slopes. The gaping wounds in the forest caused by avalanches allow many small, nutritious plants to grow. As the year progresses, they will also dig up plants with sugary roots, and eventually feast on the berry crop. Coastal grizzlies tend to grow much larger than their mountain cousins because they have a much richer food source: the salmon run. Great numbers of grizzlies congregate around river mouths in quiet corners of the coast.
Recognising a grizzly Many people struggle to tell a black bear from the grizzly bear. In part this is down to the names - black bears often aren't black! And grizzlies, while most commonly brown, can vary from pale blonde to almost black.
Why it's never wise to trust a bear's colour: two black bears wrestling, Alberta 2007.
Grizzly bear facts Each male grizzly has a home range of up to 1,400 sq km (520 sq miles) - bigger than Waterton Lakes National Park. Grizzly bears are also found in Russia and remote parts of Europe (where they are called brown bears). A grizzly can consume 20,000 calories per day when putting on weight for winter's sleep. Grizzly claws can be up to 6cm long.
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All photos, text and other content © Adele Brand (www.thesittingfox.co.uk) 2006 - 2011. Inspired by stuff found at www.webcodingtech.com. |
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