Fig. 7
From: BMC Ecology Image Competition 2016: the winning images

Winner, Community, Population, and Macroecology: “I was snorkeling in a remote lagoon in the Sudanese Red Sea when I was suddenly surrounded by hundreds of spinner dolphins. The school stayed around for hours, visibly enjoying the interaction with snorkelers in the water. The school was clearly subdivided into dozens of smaller groups of either females with their offspring or adult males.” Attribution: Julia Spät