Apologies for cross-postings.... *ABSTRACT DEADLINE EXTENDED* 3rd Symposium on Acoustic Communication by Animals *Due to uncertainties resulting from the U.S. Federal Budget process, the deadline for submission of abstracts has been extended for two weeks, to APRIL 22, 2011, at midnight.* Information on abstract submittal and registration can be found at: http://www.certain.com/system/profile/form/index.cfm?PKformID=0x1052734ea24