Dear colleagues, My coauthors and I are pleased to announce our new publication: Whitt, A.D., M.A. Baran, M. Bryson, and L.E. Rendell. 2015. First report of killer whales harassing sperm whales in the Gulf of Mexico. Aquatic Mammals 41(3): 252-255. DOI: http://dx.doi.org/10.1578/AM.41.3.2015.252 In this short note, we describe an interesting and prolonged interaction between five killer whales and 19 sperm whales in the Gulf of Mexico. This encounter provides a rare insight into the lives of the cryptic Gulf of Mexico killer whales and their potential predation on the sperm whale population in the northern Gulf. To obtain a PDF, please go to http://dx.doi.org/10.1578/AM.41.3.2015.252 or contact Amy Whitt (amy@azuraco.com) for a reprint. -- *Amy D. Whitt, M.E.M.* CEO, Senior Scientist amy@azuraco.com Azura Consulting LLC WOSB | EDWOSB www.azuraco.com <http://www.linkedin.com/pub/amy-whitt/6/4b/25a/> <https://twitter.com/AzuraConsulting>