ሳይንስየሰው ዘር አመጣጥ አዲስ ግኝትTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes Erago24 መስከረም 2010ረቡዕ፣ መስከረም 24 2010https://p.dw.com/p/2lDi3ማስታወቂያ