ሳይንስዐበይት የሳይንስ ግኝቶችTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTsehay Chanie Filatie22 ታኅሣሥ 2012ረቡዕ፣ ታኅሣሥ 22 2012https://p.dw.com/p/3VXpaማስታወቂያ