Dear colleagues, We are pleased to announce the publication of the following paper today (April 26) in Science: Allen, J., Weinrich, M., Hoppitt, W. & Rendell, L. (2013). Network-Based Diffusion Analysis Reveals Cultural Transmission of Lobtail Feeding in Humpback Whales. Science Vol. 340 no. 6131 pp. 485-488 DOI: 10.1126/science.1231976 Abstract: We used network-based diffusion analysis to reveal the cultural spread of a naturally occurring foraging innovation, lobtail feeding, through a population of humpback whales (Megaptera novaeangliae) over a period of 27 years. Support for models with a social transmission component was 6 to 23 orders of magnitude greater than for models without. The spatial and temporal distribution of sand lance, a prey species, was also important in predicting the rate of acquisition. Our results, coupled with existing knowledge about song traditions, show that this species can maintain multiple independently evolving traditions in its populations. These insights strengthen the case that cetaceans represent a peak in the evolution of nonhuman culture, independent of the primate lineage. The paper can be obtained from http://www.sciencemag.org/content/340/6131/485 or by emailing Jenny Allen at ja465@st-andrews.ac.uk Please feel free to contact me with any questions you might have. Best wishes, Jenny Allen and co-authors