Yet again, we see why Discredited Argument #5 is, well, discredited, when it comes to consanguinamory. From newscientist.com comes this report on polar bears...
Image information: Michio Hoshino/Minden Pictures/FLPA
A pedigree of 4449 polar bears in Canada uncovers the family secrets of six generations, including the first reported case of identical polar bear twins, six adoptions and one case of sibling incest.Interesting.
Based on 45 years of field observations and genetic data, the family tree traces out the complicated histories of the Western Hudson Bay group of polar bears since 1966.
“To me, the presence of identical twins was the most surprising part,” says René Malenfant at the University of Alberta, Canada.
The team also looked at how much inbreeding occurs amongst relatives. Across the entire family tree, they only identified one clear case of incest, between a pair of half-siblings. These had been born to the same mother in different years, but probably had different fathers.
“The rate of inbreeding is quite low, however it seems this is more likely because of lack of opportunity as opposed to active avoidance,” says Malenfant. Since polar bears disperse over large ranges, related bears are unlikely to encounter each other.For more information...
Journal reference: bioArxiv, DOI: 10.1101/034009
Read more: “Polar bear penis bone may be weakened by pollution”Da bears!
![Non-Monogamy Diagram [I:FV]](http://www.obsidianfields.com/lj/nonmonogamy2.5.1.gif){kind=link}
No comments:
Post a Comment
To prevent spam, comments will have to be approved, so your comment may not appear for several hours. Feedback is welcome, including disagreement. I only delete/reject/mark as spam: spam, vulgar or hateful attacks, repeated spouting of bigotry from the same person that does not add to the discussion, and the like. I will not reject comments based on disagreement, but if you don't think consenting adults should be free to love each other, then I do not consent to have you repeatedly spout hate on my blog without adding anything to the discourse.
If you want to write to me privately, then either contact me on Facebook, email me at fullmarriageequality at protonmail dot com, or tell me in your comment that you do NOT want it published. Otherwise, anything you write here is fair game to be used in a subsequent entry. If you want to be anonymous, that is fine.
IT IS OK TO TALK ABOUT SEX IN YOUR COMMENTS, BUT PLEASE CHOOSE YOUR WORDS CAREFULLY AS I WANT THIS BLOG TO BE AS "SAFE FOR WORK" AS POSSIBLE. If your comment includes graphic descriptions of activity involving minors, it's not going to get published.