Hi John, Sometime last year, the scientists that study whales' songs reported that the whales in the east side of Australia changed their song. Prior to this change the whales in the east knew only one song as far as the scientists could tell. If I recall correcly, the new song was supposedly learned from the whales migrated from the Indian ocean (the west side). The scientists concluded that the male whales started changing their songs to attract females who seem to be wooed by something new. Tomoko ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://www.digital.com for "Apistogramma Mailing List Archives"!