Communication discoveries

Science (21 May, 2009)
Bird's Songs Vary Depending on the Habitat

After vegetation recovered in some empty lands in California, Oregon and Washington, during the last three decades, a scientist noticed a lowered pitch in male white-crowned sparrows. ...
comments (4)

0 votes

//4 Nov 20, 2009 09:48 AM | posted by: samar snoubra

not continued

6 votes

//3 Aug 31, 2009 02:22 AM | posted by: bentooonnnggg

... so impressive and i say





wwwwwwwwwwwwooooooooowwwwwwwwwwww

4 votes

//2 Jul 06, 2009 04:29 AM | posted by: caira828

now I can, I mean we can use it as a report