The incredible penis-shrinking gene identified in birds

Find out why most species of birds do not have a penis in this video abstract of new research published yesterday in Current Biology:

Source

Herrera AM, Shuster SG, Perriton CL, Cohn MJ. Developmental basis of phallus reduction during bird evolution. Current Biology Published online June 6, 2013. doi: 10.1016/j.cub.2013.04.062

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I wish to get more on penis schrinking genes

By Abraham Marangu (not verified) on 25 Mar 2014 #permalink

i WISH TO KNOW MORE OF THE BIRDS SCHRINKING PENIS

By Abraham Marangu (not verified) on 25 Mar 2014 #permalink