What type of bear skull is it?
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nuclearjunky
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« on: April 29, 2012, 02:20:50 PM »

Hello,

a friend of mine has found a beautiful very old bear skull in his grandpa's house (see pictures). He used to hunt in British Columbia, Canada, long ago.
Now we would like to know what type of bear it is. The skull is 12 10/16  (32.2 centimetres) in length and 8 4/16  (21 centimetres) wide.
Its molars are large and flat and highly worn down, meaning that the animal must have been old. I have read that it is possible to determinate the species by molar size, but we don`t know how exactly.
The molars are up to 1 6/16 (3.5 centimetres) in length. We would be happy if you could tell us whether it is an old male black bear or an old female grizzly (its too large for female black and seems too small for male grizzly).


* bear skull.jpg (41.36 kB, 928x495 - viewed 291 times.)
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Head Hunting Iowan
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Location: Fort Dodge, Iowa
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« Reply #1 on: April 29, 2012, 03:10:00 PM »

I'd say black bear.
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Sea Wolf
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Location: Taxachusetts
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« Reply #2 on: April 29, 2012, 05:18:07 PM »

Size would say a black but the muzzle on it says it's a very small grizz. Again, if the molars are worn down due to age, it will not be a grizz. The skull could be either a male or female black actually.  Either way, ask Grandpa before you run off with it.  :)
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slammerdude
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« Reply #3 on: April 29, 2012, 06:04:10 PM »

It is an older sow Grizz for sure. It is a sow based on shape, has closed sutures and is too big for a sow Black Bear. If it was a Black Bear boar the fore head would be broader, probably bigger measurements for age and it would also have a much more defined/bigger sagittal crest on the top of the skull. The two pictures on the left are a dead give away. Lastly, Grizz/Brown Bear molars are always greater than 1 1/4 inches and a Black Bear molar is always smaller than 1 1/4 inches.
« Last Edit: April 29, 2012, 06:17:24 PM by slammerdude » Logged
nuclearjunky
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« Reply #4 on: May 01, 2012, 02:13:00 PM »

Thanks for you answers.
So we can be sure that it is a sow grizz?
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Great Skulls?
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Location: SC
Posts: 936


« Reply #5 on: May 01, 2012, 02:26:28 PM »

Yup.  Grizz for sure.  I have a PhD in carnivore cranial anatomy.  You can take my word for it.  Cool skull.  I'd like it.  (But then again, I don't think I've ever come across a skull I didn't want.)
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