They suggest that the fragmentation of the brown
bear genetic lines and subsequent hybridization with polar bears were caused by the onset of the Eemian (125 ka), last major warming period, and the «adaptive introgression» that resulted may have helped both polar and grizzly bears survive in their changing environments.
Not exact matches
It is not clear if Hamer and his team found the locus of the
genetic code that causes men to memorize
lines from A Star Is
Born.
Finally, there are basic questions about the robustness of the conclusions, which are based on a new
line of
genetic analysis not previously applied to polar
bears.