... hundred years of the appearance of humans. Thus disappeared the giant kangaroos and wombats of Australia 50,000 years ago, and the elephant-like mastodons and the sloth of North America about13,000 ... North Atlantic, deliberate hunting of whales—as opposedto the occasional consumption of stranded individuals—was proba-bly initiated in Scandinavia a thousand years ago, and then furtherdeveloped ... impor-tance of maintaining and safeguarding marine ecosystems, which are in many ways as indispensable to our well-being as the terrestrial ecosystems that we inhabit.Daniel Pauly, Vancouver Jay...