Friday, July 24, 2009

Recent Research in Molecular Biology

I learned a few things over this past weekend. (That would be my weekend--Sunday through Tuesday.) Here are a few fun things going on in the realm of biology.




Hybrid offspring of the blue and fin whales have been suspected, based on morphology, since at least 1986:


This was recently confirmed by comparison of suspected hybrid offspring DNA sequences with that of both blue and fin specimens:


If I remember correctly, the mitochondrial DNA matched blue whale sequences, meaning its mother was a blue. Unfortunately, this hybridizing may be a sign of severely low population density. Large-bodied species are usually most susceptible to extinction.



Check out the bimodal distribution of gross male morphology in the giant cuttlefish (Sepia apama). This one's for you, mom:


Read this abstract on research that led to the understanding of non-random sperm use in this species:

http://rspb.royalsocietypublishing.org/content/272/1567/1047.abstract

The rest will have to wait for later. Animals are fun.



2 comments:

  1. Maybe post something the rest of us will understand next time... ;)

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  2. Very nice! It's what any father of an Entomologist would be proud of...Dad

    ReplyDelete