For many, he's the face of Sea Shepherd: Paul Watson, now silver-haired in his early 70s, co-founded the controversial direct action group in 1977 after an acrimonious split with Greenpeace.
Greenpeace, according to Watson, had thought his tactics too confrontational.
Sea Shepherd's original modus operandi was infused in the now ubiquitous logo of Watson's design — a spin on the Jolly Roger — with a shepherd's crook and Neptune's trident crossed beneath a skull, its forehead emblazoned with a whale and dolphin.