CSI of the Sea: what have we learnt from 30 years of investigating UK strandings?

A dolphin is found dead stranded on a remote beach by a dog walker. Why did this event occur? How did it die? Was the stranding natural, or was it caused by our activities? What can we usefully learn from investigation of the stranded animal? And perhaps most importantly, what can both its life and death tell us about the state of the wider marine ecosystem and the impacts we are having upon it?

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