why swan always white?

China
September 11, 2007 7:44am CST
why swan always white?may the black?who may pxplain i listen?
1 person likes this
1 response
dzieffczynka
@dzieffczynka (123)
• Poland
27 Oct 07
There aren't always white. There are black too. See this foto: http://www.salamandra.org.pl/news/foto/120.jpg