“Pour some cold cream into a cup of hot, black coffee, and you end up with a drink that’s midway between the two ingredients in color, temperature, and flavor. A similar kind of blending can occur if members of closely related species frequently mate with each other, but many species have mechanisms to prevent such mixing.” -HHMI News
My new favorite analogy about species inbreeding, and one that every academic can relate to.
But seriously, over at Howard Hughes Medical Institute Jay Shendure and Harmit Malik (a researcher I have long admired) has come up with a clever series of experiments to find the gene responsible for keeping two fly species separate.
Read about their new technique here!
Nothing in Biology Makes Sense! 
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