http://gallery.usgs.gov/ en-us A list of the latest videos and vodcasts added to the U.S. Geological Survey's Multimedia Gallery (http://gallery.usgs.gov). http://gallery.usgs.gov/images/USGS.gif http://gallery.usgs.gov/ Bears rub on many objects other than trees. This clip shows a grizzly bear rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wodden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.

]]> kkendall - at - usgs.gov (Katherine C. Kendall) http://gallery.usgs.gov/videos/519 http://gallery.usgs.gov/videos/519 Wed, 1 Feb 2012 00:00:00 EDT Montana GrizzlyBear ursus BearRub RemoteCamera Video narrated by Amy Macleod, USGS Wildlife Biologist Research Assistant at the West Glacier Field Station in Montana, on the making of the scent lures for the Northern Divide Bear Project. Scent lures are concoctions made from decomposing fish and cows blood. The scent lure is wretchedly stinky and making it is one of the dirtiest jobs in the USGS. Scent lures are used to attract bears to hair snag stations. The collected hair is used in DNA analysis. The DNA analysis is sued by USGS researchers to determine the population of bears in the Northern Continental Divide Ecosystem.

]]> laallen - at - usgs.gov (Katherine Kendall) http://gallery.usgs.gov/videos/358 http://gallery.usgs.gov/videos/358 Thu, 7 Apr 2011 00:00:00 EDT Bears HairSnags ScentLures DNAAnalysis GlacierNationalPark Montana Bears rub on many objects other than trees. This clip shows a grizzly bear with two yearlings rubbing on a wooden bridge on a decommissioned forest road. Barbed wire is attached to the wooden bridge beams and the bear rub tree next to the bridge to collect bear hair. This footage is still photos from a remote camera that have been stitched together in sequence.

]]> kkendall - at - usgs.gov (Katherine C. Kendall) http://gallery.usgs.gov/videos/520 http://gallery.usgs.gov/videos/520 Tue, 1 Feb 2011 00:00:00 EDT Montana GrizzlyBear ursus BearRub RemoteCamera A wolf feeds on a road-killed elk carcass in the morning. A grizzly bear with two cubs feeds on the carcass in the evening. A grizzly bear will chuff and pop its jaw when it feels threatened. Sometimes it will also charge at the threat, usually veering off or stopping short -- a bluff charge. Early the next morning a grizzly bear with cubs chuffs and bluff charges a wolf. The wolf appears to be alone and, at times, postures as if it is playing. Video camera was triggered by a motion sensor (Make sure you have your sound on for this; note: at one point there a loud sound that is wind).

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/20 http://gallery.usgs.gov/videos/20 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear cub wolf carcass NorthernDivide remote camera DNA research KateKendall GlacierNationalPark animals Black bear rubs on a tree regularly used by bears in Glacier National Park then approaches, sniffs, and swats the camera.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/23 http://gallery.usgs.gov/videos/23 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana Deer with a fawn passes by and through a bear hair trap.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/31 http://gallery.usgs.gov/videos/31 Fri, 13 Jun 2008 00:00:00 EDT NorthernDivide DNA deer wire hair research KateKendall GlacierNationalPark Grizzly bear vigorously rubbing on a tree regularly used by bears in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/32 http://gallery.usgs.gov/videos/32 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Grizzly bear paws and licks one of our remote cameras and eventually pushes it off the tree. The camera container had a screw top lid that moves as the bear paws at it; the camera was not damaged (Make sure you have your sound on for this).

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/33 http://gallery.usgs.gov/videos/33 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals This is two video clips captured at the same site from two different angles. The rub trees are on one side of the trail and the excavated log is on the other side. Bears that rub on one or more of the trees often visit the log as well. The clips show a grizzly bear rubbing on a tree regularly used by bears then investigates and rubs on the decaying log on the opposite side of the trail in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/35 http://gallery.usgs.gov/videos/35 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Grizzly bear and her cub visit a bear hair trap in Glacier National Park. The bear leaves hair samples snagged on the barbed wire as it enters and exits the site. Both bears vigorously rub in the lure pile which is a pile forest debris that had a liquid scent lure poured on it.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/37 http://gallery.usgs.gov/videos/37 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear hair DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Grizzly bear sniffs and rubs on trees regularly used by bears in Glacier National Park then visits a log off screen and returns to the trees to rub again.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/38 http://gallery.usgs.gov/videos/38 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Grizzly bear rubbing, laying on, and excavating a decaying tree in Glacier National Park. The log shows long-term use by bears.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/39 http://gallery.usgs.gov/videos/39 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree digging DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Eight wolves walk past a bear rub tree in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/40 http://gallery.usgs.gov/videos/40 Fri, 13 Jun 2008 00:00:00 EDT wolves NorthernDivide research KateKendall GlacierNationalPark Montana animals Wolverine moves through a barbed wire bear hair trap. The wolverine is smaller than a bear and does not snag any hair on the barbed wire.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/41 http://gallery.usgs.gov/videos/41 Fri, 13 Jun 2008 00:00:00 EDT wolverine NorthernDivide research KateKendall GlacierNationalPark Montana animals Black bear cub awkwardly rubs on a bear rub tree regularly used by bears in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/45 http://gallery.usgs.gov/videos/45 Fri, 13 Jun 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark Montana animals Elk walk past a bear rub tree in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/46 http://gallery.usgs.gov/videos/46 Fri, 13 Jun 2008 00:00:00 EDT elk NorthernDivide research KateKendall GlacierNationalPark Montana animals A pine marten climbs up and down a tree and onto the remote camera box. The camera is pointed at a bear rub tree.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/48 http://gallery.usgs.gov/videos/48 Fri, 13 Jun 2008 00:00:00 EDT PineMarten NorthernDivide research KateKendall GlacierNationalPark Montana animals A red fox visits a bear hair trap site in Glacier National Park.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/51 http://gallery.usgs.gov/videos/51 Fri, 13 Jun 2008 00:00:00 EDT fox NorthernDivide research KateKendall GlacierNationalPark Montana animals Grizzly bear vigorously rubbing on a natural marking tree in Glacier NP, Montana. Rubbing is a form of chemical communication. DNA analysis of hair collected from natural rub trees is used to identify individual bears and census the population.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/15 http://gallery.usgs.gov/videos/15 Mon, 3 Mar 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark animals Black bear rubbing on a marking tree regularly used by other bears in Glacier NP, Montana. DNA fingerprinting of hair collected from natural rub trees is used to census the bear population.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/17 http://gallery.usgs.gov/videos/17 Mon, 3 Mar 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide research KateKendall GlacierNationalPark animals Grizzly bear goes under barbed wire into a hair snag station, sniffs scent lure pile, and leaves. DNA analysis of hair deposited on the barbs identifies the bear for a study of bear population size.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/18 http://gallery.usgs.gov/videos/18 Mon, 3 Mar 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide wire hair research KateKendall GlacierNationalPark animals Grizzly bear climbs over barbed wire at a hair snag station near Glacier NP, Montana. DNA analysis of bear hair is used to identify individuals as part of study to determine the size of the bear population.

]]> J.Stetz / A.Macleod http://gallery.usgs.gov/videos/19 http://gallery.usgs.gov/videos/19 Mon, 3 Mar 2008 00:00:00 EDT grizzly bear rub tree DNA NorthernDivide wire hair research KateKendall GlacierNationalPark animals