Dear colleagues: Many thanks to all the specialists that send me records or information of different cetaceans species. We live far away to any cetaceans species except the dolphins of Madrid zoo to 300 km ;-). Really, this mail list is a very nice example of scientific collaboration. I am greatly surprised. This is not the normal behavior in my country ;-). If somebody need my assistance in any aspect of data analysis that I can do it, please feel free of comment me. At the moment and after of a very intense search in the web, we finally had obtained the following list of species: Balaena_mysticetus Balaenoptera_acutorostrata Balaenoptera_borealis Balaenoptera_edeni Balaenoptera_musculus Balaenoptera_physalus Berardius bairdii Berardius_arnuxii Cephalorhynchus_hectori Delphinapterus_leucas Delphinus_delphis Eschrichtius_robustus Eubalaena_australis Eubalaena_glacialis Eubalaena_japonica Feresa_attenuata Globicephala_macrorhynchus Globicephala_melas Grampus_griseus Hyperoodon_ampulatus Inia_geoffrensis Kogia_breviceps Lagenodelphis_hosei Lagenorhynchus_albirostris Lagenorhynchus_obliquidens Lagenorynchus_acutus Lipotes_vexillifer Lissodelphis_borealis Megaptera_novaeangliae Mesoplodon_densirostris Monodon_monoceros Neophocaena_phocaenoides Orcaella_brevirostris Orcaella_heinsohni Orcinus_orca Pepenocephala_electra Phocoena_phocoena Phocoena_sinus Phocoenoides_dalli Physeter_macrocephalus Platanista_gangetica Pontoporia_blainvillei Pseudorca_crassidens Sotalia_fluviatilis Sousa_chinensis Stenella_attenuata Stenella_coeruleoalba Stenella_frontalis Stenella_longirotris Steno_bredanensis Tursiops_truncatus Ziphius_cavirostris If somebody have records of other species the analysis is in course ;-) Our idea is that students analyze these species using different software packages as seewave (R-environment), audacity, send me the results and I determine a global model using multivariate analysis or artificial neural networks, that are methods more complex for students. The main idea is determining a global pattern of variation in the group. We use this procedure with amphibians and birds in previous practices with curious results. For example, with Spanish species of woodpeckers we found a taxonomic pattern, but with Sylviidae family of birds the differences were due to habitats.... What results can we finally obtain with cetaceans? I don't know but this is very funny ;-) Probably scientifically irrelevant but very funny and specially didactic ;-). Finally we discuss the main tendencies of characteristics of sound communication in the group ;-) Many regards -- ******************************************************** Daniel Patón Domínguez Numerical Ecology. Ecology Unit Department of Plant Biology, Ecology and Earth Sciences Faculty of Sciences. University of Extremadura Avda. Elvas s/n 06071 Badajoz (Spain) http://unex.academia.edu/DanielPatonDominguez http://sites.google.com/site/numericalecologyuex/home ********************************************************