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Post by brobear on Mar 18, 2017 10:52:50 GMT -5
Yellowstone Bears in the Wild by James C. Halfpenny. George and Jana Stevenson, neurosurgeon and neruroanatomist and biologist, are using MRI and CT technology to produce three-dimensional maps of Yellowstone grizzly brains. Their research reveals that the brains, while similar to other mammals, have an enlarged olfactory apparatus. Compared to humans, a bear's olfactory region is about 250 times larger. The bear's enhanced sence of smell is directly wired to the brain, a condition much more primitive than for other senses such as vision and hearing. This leads the Stevensons to believe that bears develope "smell maps" in their brains. Humans have "visual maps." A "smell map" allows a bear to navigate primarily by odors augmented by vision and hearing. The Stevensons also found larger somesethic ( touch ) and motor regions. The bear's enhanced sense of touch and motor skills probably allows bears to manipulate objects with their claws. I have observed grizzlies picking up single pine nuts with their claws as if their claws were chopsticks.  |
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Post by brobear on Sept 17, 2018 4:52:10 GMT -5
From the documentary, "America's Greatest Animals" Casey Anderson says that a grizzly can smell an open jar of peanut-butter from a distance of three miles. He has also stated that a grizzly's sense if smell is seven-times greater than that of a bloodhound.
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Post by King Kodiak on Sept 17, 2018 5:16:31 GMT -5
Yeah we know that bears probably have the best nose, but wow, 3 miles is just incredible.
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Post by brobear on Sept 17, 2018 5:31:18 GMT -5
Even while considering how clean and clear the air must be in the high arctic, this is still incredible...
On a documentary, from the air, a polar bear was observed walking along when he suddenly stopped... put his nose up towards the sky... then changed his direction and walked a straight line roughly 100 miles to a she-bear in heat.
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Post by King Kodiak on Sept 17, 2018 6:12:50 GMT -5
100 miles? So the polar bear smelled the female from 100 miles away? I dont know about this one, sounds far fetched to me, lol.
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Post by tom on Sept 17, 2018 14:26:11 GMT -5
From the documentary, "America's Greatest Animals" Casey Anderson says that a grizzly can smell an open jar of peanut-butter from a distance of three miles. He has also stated that a grizzly's sense if smell is seven-times greater than that of a bloodhound. And a bloodhound's sense of smell is over a 100 times greater than a humans. So if we do the math that would put the Bear at OVER 700 times greater sense of smell than a human. |
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Post by brobear on Sept 17, 2018 15:19:55 GMT -5
100 miles? So the polar bear smelled the female from 100 miles away? I dont know about this one, sounds far fetched to me, lol. This is from a wildlife documentary. The rangers followed the polar by helicopter. Consider the far arctic; no vegetation, no birds or bugs; nothing to obscure the female's scent. |
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Post by King Kodiak on Sept 17, 2018 16:12:54 GMT -5
Wow thats awesome then. 100 miles, really impressed. I knew about the sense of smell, but did not think it was that much.
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Post by brobear on Nov 18, 2018 6:20:02 GMT -5
www.theultimatecatwebsite.com/cat-senses.html Cats rely on their sense of smell to determine where a cat has been, to define their territory, and to find out if food is safe to eat. A cat's nose contains around 200 million nerve cells, while a human only has 5 million, making a cat's sense of smell is around 14 times more sensitive than a human's. Not surprisingly, once a cat smells something it may remember it for the rest of its life. sectionhiker.com/bears_sense_of_smell/ Bears are thought to have the best sense of smell of any animal on earth. For example, the average dog’s sense of smell is 100 times better than a humans. A blood hound’s is 300 times better. A bear’s sense of smell is 7 times better than a blood hound’s or 2,100 times better than a human.
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Post by Deleted on Apr 7, 2019 7:51:08 GMT -5
www.theultimatecatwebsite.com/cat-senses.html Cats rely on their sense of smell to determine where a cat has been, to define their territory, and to find out if food is safe to eat. A cat's nose contains around 200 million nerve cells, while a human only has 5 million, making a cat's sense of smell is around 14 times more sensitive than a human's. Not surprisingly, once a cat smells something it may remember it for the rest of its life. sectionhiker.com/bears_sense_of_smell/ Bears are thought to have the best sense of smell of any animal on earth. For example, the average dog’s sense of smell is 100 times better than a humans. A blood hound’s is 300 times better. A bear’s sense of smell is 7 times better than a blood hound’s or 2,100 times better than a human. So bears beats cats in terms of smelling ability too  . |
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Post by King Kodiak on Apr 7, 2019 12:01:16 GMT -5
So bears beats cats in terms of smelling ability too.
By far. If am not mistaken, Bears have probably the best nose in the animal kingdom.
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Post by brobear on Apr 7, 2019 12:43:26 GMT -5
So bears beats cats in terms of smelling ability too. By far. If am not mistaken, Bears have probably the best nose in the animal kingdom.This is probably true, although both the turkey vulture and the elephant can give the bear a tight contest.  |
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Post by Deleted on Apr 7, 2019 21:49:19 GMT -5
So bears beats cats in terms of smelling ability too. By far. If am not mistaken, Bears have probably the best nose in the animal kingdom.This is probably true, although both the turkey vulture and the elephant can give the bear a tight contest. Most birds of prey including vultures find food solely by sight but have a poor sense of smell. The turkey vulture is one rare bird that finds food not just by sight but by smell. |
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Post by BruteStrength on Apr 8, 2019 3:19:06 GMT -5
Bears have better smell than even bloodhounds.
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Post by King Kodiak on Aug 1, 2019 5:10:32 GMT -5
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Post by tom on Aug 1, 2019 8:35:20 GMT -5
I believe it.
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Post by brobear on Nov 14, 2019 13:16:41 GMT -5
According to The Bear Almanac - Second Edition:
Brown bears have moderately good hearing and eye site.
An old, and much related Native American saying may best describe the olfactory awareness of bears:
A pine needle fell in the forest.
The eagle saw it.
The deer heard it.
The bear smelled it.
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Post by brobear on Nov 14, 2019 13:17:00 GMT -5
The Bear Almanac - Second Edition:
Whether low to the ground or held high in the wind, the nose of a bear is its key to its surroundings. "Smell," writes Herreto, "is the fundamental and most important sense a bear has. A bear's nose is its window into the world just as our eyes are."
The keen sense of smell - the olfactory awareness - of bears is excellent. No animal has a more acuteness of smell ( seven times better than that of a bloodhound scent dog ); it allows location of mates, avoidance of humans and other bears, identification of cubs, and the location of food sources. The nose provides the leading sense in the search for nourishment," notes Paul Schullery in The Bears of Yellowstone. The nose of the bear is somewhat "piglike," with a pad extending a short distance in front of the snout. The surface area of a bear's nasal mucous membrane, a hundred times larger than a human's, is the key to this incredible sense of smell.
A bear has been known to detect a human scent more than fourteen hours after the person passed along a trail. "The olfactory sense of the bears ranks among the keenest in the animal world," according to George Laycock in The Wild Bears. "A black bear in northern California was once seen to travel upwind three miles in a straight line to reach the carcass of a dead deer."
A grizzly bear's sense of smell is seventy five times better than that of a human; therefore, it can detect a human 2 miles away. However, the sense of smell of polar bears may be the finest. They may smell a seal's breath emitted for only a few seconds from a small hole in the ice several miles away or detect a seal under 3 feet of snow a half mile distant.
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Post by brobear on Nov 14, 2019 13:17:29 GMT -5
The Bear Almanac - Second Edition:
Another Sense...
Some bears in Alaska were observed moving to higher ground just prior to the 9.2 magnitude earthquake of 1964. Bears, geese, elephants, and other animals apparently are capable of sensing the initial earth movement preceding a major tremor.
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Post by King Kodiak on Nov 14, 2019 17:36:32 GMT -5
The Bear Almanac - Second Edition: Another Sense... Some bears in Alaska were observed moving to higher ground just prior to the 9.2 magnitude earthquake of 1964. Bears, geese, elephants, and other animals apparently are capable of sensing the initial earth movement preceding a major tremor. |
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