Dear MARMAM and ECS-talk subscribers, Apologies to those of you who will receive duplicate emails due to cross-posting. The following titles represent the contents of the most recent issue (Volume 38, issue 4, 2012) of Aquatic Mammals. The online issue is now available. For individuals with a print subscription, the joint hard copy of 38.3/38.4 will be mailed in December. Aquatic Mammals is the longest running peer-reviewed journal dedicated to research on aquatic mammals and is published quarterly with manuscripts available as published PDFs in real time. Further information about the journal can be found at: http://www.aquaticmammalsjournal.org/ Instructions for authors and formatting guidelines can be found in the first volume of each issue and at this link: http://tinyurl.com/AMauthorinstructions To submit a manuscript for publication consideration, please visit: http://am.expressacademic.org/actions/author.php If you subscribe to Aquatic Mammals online, you can visit the journal web site and sign in to download all articles from this volume:http://www.aquaticmammalsjournal.org/ Please do not contact the listserve editors for PDFs or copies of the articles. To obtain a PDF, please subscribe to Aquatic Mammals http://tinyurl.com/AMsubscribe or contact the corresponding author for reprints. Links to a purchase page for each article are also included below. Please see list below for Volume 38, issue 4 contents. Thank you for your continued interest in the journal and abstract postings. With regards, Kathleen Dudzinski, Ph.D. Editor, Aquatic Mammals aquaticmammals@gmail.com ******************* Murayama , T., Usui , A., Takeda, E., Kato, K., Maejima, K. (2012). Relative Size Discrimination and Perception of the Ebbinghaus Illusion in a Bottlenose Dolphin (Tursiops truncatus). Aquatic Mammals 38(4): 333-342 http://dx.doi.org/10.1578/AM.38.4.2012.333 Haelters, J., Kerckhof, F., Jauniaux, T., Degraer, S. (2012). The Grey Seal (Halichoerus grypus) as a Predator of Harbour Porpoises (Phocoena phocoena)? Aquatic Mammals 38(4): 343-353 http://dx.doi.org/10.1578/AM.38.4.2012.343 Bergfelt, D.R., Thompson, Jr., D.L., Brown, J.L., Presley, N.A., West, K.L., Campbell, M., et al. (2012). Investigation of an Immunoreactive Chorionic Gonadotropin-Like Substance in the Placenta, Serum, and Urine of Pregnant Bottlenose Dolphins (Tursiops truncatus). Aquatic Mammals 38(4): 354-361 http://dx.doi.org/10.1578/AM.38.4.2012.354 Miller, P.J.O., Kvadsheim, P.H., Lam, F-P.A., Wensveen, P.J., Antunes, R., Alves, A.C., et al. (2012). The Severity of Behavioral Changes Observed During Experimental Exposures of Killer (Orcinus orca), Long-Finned Pilot (Globicephala melas), and Sperm (Physeter macrocephalus) Whales to Naval Sonar. Aquatic Mammals 38(4): 362-401 http://dx.doi.org/10.1578/AM.38.4.2012.362 Eigeland, K.A., Lanyon, J.M., Trott, D.J., Ouwerkerk, D., Blanshard, W., Milinovich, G.J., et al. (2012). Bacterial Community Structure in the Hindgut of Wild and Captive Dugongs (Dugong dugon). Aquatic Mammals 38(4): 402-411 http://dx.doi.org/10.1578/AM.38.4.2012.402 Bossart, G., Arheart, K., Hunt, M., Clauss, T., Leppert, L., Roberts, K., et al. (2012). Protein Electrophoresis of Serum from Healthy Atlantic Bottlenose Dolphins (Tursiops truncatus). Aquatic Mammals 38(4): 412-417 http://dx.doi.org/10.1578/AM.38.4.2012.412 Short Notes Owen, K., Dunlop, R., Donnelly, D. (2012). Seaweed Interactions by Humpback Whales (Megaptera novaeangliae): A Form of Object Play? Aquatic Mammals 38(4): 418-422 http://dx.doi.org/10.1578/AM.38.4.2012.418 Kot, B.K., Morisaka, T., Sears, R., Samuelson, D., Marshall, C.D. (2012). Low Prevalence of Visual Impairment in a Coastal Population of Gray Seals (Halichoerus grypus) in the Gulf of St. Lawrence, Canada Aquatic Mammals 38(4): 423-427 http://dx.doi.org/10.1578/AM.38.4.2012.423 Horback, K.M., Muraco, H., Kuczaj II, S.A. (2012). Variations in Interspecific Behavior Throughout the Estrous Cycle of a Killer Whale (Orcinus orca). Aquatic Mammals 38(4): 428-434 http://dx.doi.org/10.1578/AM.38.4.2012.428 Araújo, C.C., John Y. Wang, J.Y. (2012). Botos (Inia geoffrensis) in the Upper Reaches of the Tocantins River (Central Brazil) with Observations of Unusual Behavior, Including Object Carrying. Aquatic Mammals 38(4): 435-440 http://dx.doi.org/10.1578/AM.38.4.2012.435 Historical Perspectives Notarbartolo di Sciara, G. (2012). Ancient Waves, Recent Concerns: The Budding of Marine Mammal Conservation Science in Italy. Aquatic Mammals 38(4): 441-455 http://dx.doi.org/10.1578/AM.38.4.2012.441 Obituary Bloom, P. (2012). Obituary: Reginald Bloom. Aquatic Mammals 38(4): 456-457 http://dx.doi.org/10.1578/AM.38.4.2012.456