tag:blogger.com,1999:blog-4104168567969013632.post6989173659728238920..comments2023-03-28T07:21:30.236-04:00Comments on Concrete Ornithology: My Year of Darwin 12/2/2014 when making children.... Jeff Stratfordhttp://www.blogger.com/profile/09591299557480490379noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-4104168567969013632.post-1846158265057139302014-12-02T19:24:53.453-05:002014-12-02T19:24:53.453-05:00That's an interesting example. I can't acc...That's an interesting example. I can't access the article (from home) but I wonder what the fitness is (and the variation) among hybrids. Also make one question either species concepts or those bears being different species. Thanks for the article - I'll check it out when I get back to the office. Jeff Stratfordhttps://www.blogger.com/profile/09591299557480490379noreply@blogger.comtag:blogger.com,1999:blog-4104168567969013632.post-22428878721793406672014-12-02T14:40:54.631-05:002014-12-02T14:40:54.631-05:00"At the other end", and albeit outside y..."At the other end", and albeit outside your area of specialization, brown bears and polar bears make an excellent and well studied example of two closely-related species, with very different environmental adaptations, that produce occasional hybrids. A recent study also establishes that there is a population of "brown bears" in Alaska which consists entirely of bears with brown bear patrilines and polar bear matrilines. (See http://mbe.oxfordjournals.org/content/31/6/1353.full)Profanehttps://www.blogger.com/profile/05131628865279071396noreply@blogger.com