Let me palpitate in the subject. As Vinny said, almost the totality of the rains in Amazon is generated there, but if you look at the map of South America, many of the tributary of the Amazonas river are born out of the limits of Amazon and there are the rains in the heads of these rivers, as well at north (in Guyana's mountains) as in south that take good part of the waters that provoke the periodic floods in the area. Those rains are derived of Atlantic's coming humidity, to the south (Central Brazil) they are less abundant because the humidity is retained in the coast, on north the humidity is discharged in the Guyana's mountains and from there taken to Amazon. It is still the defrost in Andes that feeds the Amazonas river, and responde for other great portion of the floods. At least it is what remember my classes on the subject (eons ago) Zeco http://sites.netscape.net/zecocarvalho/ ------------------------------------------------------------------------- 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://altavista.digital.com for "Apistogramma Mailing List Archives"!