ሳይንስዴሊቨር አዲስTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስChane,Tsehay10 ሰኔ 2012ረቡዕ፣ ሰኔ 10 2012https://p.dw.com/p/3dvB9ማስታወቂያ