The human penguin project: climate, social integration, and core body temperature by Ijzerman, H, Lindenberg, S, Dalğar, İ, Weissgerber, S, Vergara, R, Cairo, A, Čolić, M, Dursun, P, Frankowska, N, Hadi, R, Hall, C, Hong, Y, Hu, C, Joy-Gaba, J, Lazarević, D, Lazarević, L, Parzuchowski, M, Ratner, K, Rothman, D, Sim, S, Simão, C, Song, M, Stojilović, D, Blomster, J, Brito, R, Hennecke, M, Jaume-Guazzini, F, Schubert, T, Schütz, A, Seibt, B, Zickfeld, J, Vazire, S, McCarthy, R