Dear Marmam Colleagues, I am co-editing a special issue in Frontiers in Marine Science on "Sociality in the Marine Environment". We are particularly interested in papers on marine mammals, although other marine fauna will be part of this issue. Our focus is on what aspects of the marine environment drive (or constrain!) social living - a topic which can be approached from a variety of perspectives. Marine mammalogists have led the way in developing methods and analytic techniques for understanding social dynamics in the marine environment. Abstracts are due *October 8th* and submissions from the marine mammal community are* strongly *encouraged. https://www.frontiersin.org/research-topics/15283/sociality-in-the-marine-en... <https://www.frontiersin.org/research-topics/15283/sociality-in-the-marine-environment> Janet Mann, Ph.D. website <https://gufaculty360.georgetown.edu/s/contact/00336000014RY0bAAG/janet-mann> Professor of Biology & Psychology, Georgetown University she/her/hers