A Bertram Chander's "With Good Intentions" (short story, uplift, free): Idea of a pecking order is fundamental to all animal groups
Very similar in idea to the first story in Arthur Clarke's "2001 A Space Odyssey", though far less interesting: Lieutenant Grimes, a human explorer on Delta Sextans IV, a world with some animals in ape-like stage, helps the natives discover a primitive bone tool.
But his boss, Captain Tolliver - from a world called Worrall that was destroyed in a nuclear war, is not happy - perhaps disapproving the spreading of the killing madness of humanity.
Fact sheet.First published: A Bertram Chandler's collection "The Hard Way Up" (1972), as part of an Ace Double.
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Related: Stories of A Bertram Chandler.