Saved by the
hair of a
bear
This summer when Yellowstone grizzly bears
enjoy a nice back-scratch, they could be saving their own hides.
Researchers from the Yellowstone Grizzly Foundation will set up
triangular corrals of barbed wire at various locations in hopes
that the bears will rub against the wire and leave a little hair
behind. “When a bear comes to one of our traps, it will be signing
a guest book,” says Don Whittemore, director of the nonprofit
Yellowstone Grizzly Foundation. “We can identify a bear’s entire
family.” Past studies have shown that Yellowstone’s bears come from
just two maternal lineages, and 91 percent spring from just one.
Last year 18 grizzlies died – 16 killed by humans – the highest
number since the species was given federal protection in 1975,
giving scientists further concern about the population’s genetic
diversity. Federal scientists say the new tests will help them
gauge the importance of bringing in bears from Canada and Montana
to infuse the Yellowstone population with new genetic material. For
more information, call the Yellowstone Grizzly Foundation at
303/939-8126 or check the group’s web site at
http://www.desktop.org/ygf.
This article appeared in the print edition of the magazine with the headline Saved by the hair of a bear.

