标题: Black Bear Encounter [打印本页] 作者: choi 时间: 5-11-2011 07:03 标题: Black Bear Encounter 本文通过一路BBS站telnet客户端发布
Pam Belluck, Study of Black Bears Finds It's Not the Mamas That Should Be Feared the Most. New York Times, May 11, 2011.
http://www.nytimes.com/2011/05/11/science/11bears.html?_r=1&scp=2&sq=bear&st=cse
Quote:
"While there are about 15 times as many black bears as grizzlies, grizzlies kill about twice as many people, likely because they evolved in open plains and rarely climb trees, Dr. Herrero said. Roughly half of grizzly attacks involve mothers protecting cubs.
"The black bear findings, published Wednesday in the Journal of Wildlife Management, suggest that people should behave differently around different bears. * * * Never run from bears.
Note:
(a) American black bear
http://en.wikipedia.org/wiki/American_Black_Bear
(Ursus Americanus; North America's smallest and most common species of bear; omnivores)
Quote:
"Although they all live in North America, American black bears are not closely related to brown bears and polar bears; genetic studies reveal that they split from a common ancestor 5.05 mya. Both American and Asiatic black bears are considered sister taxa, and are more closely related to each other than other species of bear.
Compare
Grizzly bear
http://en.wikipedia.org/wiki/Grizzly
(Ursus arctos horribilis; a subspecies of brown bear (Ursus arctos); section 1 Name)
(b) I can not even find an abstrct anywhere--in PubMed or the journal website
http://joomla.wildlife.org/index.php?option=com_content&task=view&id=43&Itemid=70