To Zoologist Gladwyn Kingsley Noble of Manhattan's American Museum of Natural History, fish are not gawping, cold-eyed nonentities, but personalities as ambitious and sociable as human beings.
"Fish left together in groups get to know one another personally," wrote Dr. Noble in the Collecting Net* last week, "even where there are no sexual or individual external differences which the human eye can distinguish. [They form] social hierarchies. One fish can strike a second fish without being struck in return, and the second has the same right of 'passing the blow' to a third individual. These . . . 'pecking orders' owe their...
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