Beasts and Super-Beasts by Saki (1870 - 1916)

Saki (December 18, 1870 – November 14, 1916) was the pen name of British author Hector Hugh Munro. Saki's world contrasts the effete conventions and hypocrisies of Edwardian England with the ruthless but straightforward life-and-death struggles of nature. Nature generally wins in the end. (Summary from Wikipedia)