National Geographic : 1912 Jun
Photo by Prof. Henry B.Ward SALMON BELOW AND IN A FALLS IN AN ALASKAN STREAM The leaping powers of the salmon of the North Atlantic have been amply praised in prose and poetry. Not less worthy ofadmiration are the skill, zeal, and persistence with which the North Pacific salmon overcome obstacles, ascend rapids and cascades, and surmount falls while on their way to their spawning grounds. The bull-dog pertinacity with which the fish continue on their course while rapidly undergoing physical de terioration has hardly a parallel in the whole fish tribe. In the Snake River and the Yukon River theytravel 2,000 miles from theocean, and after once beginning their upward journey they take no food of any kind. Every individual of every species ofsalmon dies shortly after spawning (see pages 471 and 497-499).