Why does a whale only eat small fish?

Rudyard Kipling, the famous English writer and poet, was born in 1865 in India, which was then a colony of Great Britain. The early childhood, which the boy spent with his loving parents in a blissful exotic country, was happy, however, when Rudyard turned five, he and his three-year-old sister were sent to a boarding school in England.
There followed six joyless years: the boy was not loved, often punished. At the age of 12, his parents arranged for Rudyard to attend a private school, the director of which was his father's friend. It was assumed that the school would prepare the young man for a military career, but his nearsightedness thwarted these plans. It was impossible to enter other educational institutions after this school, and Rudyard, who had already been writing excellent stories during his studies, became a journalist in India.
Kipling wrote a lot. When he was just over twenty, he had already published 6 books of stories, and at 25, the talented young man published his first novel. Rudyard Kipling - the first Englishman to receive the Nobel Prize in Literature. Children and adults all over the world love the bright, original creativity of this writer. His books are read in many countries, and based on them, in Russia and abroad, numerous cartoons, feature films, anime series 'The Jungle Book' have been made. It is unlikely that there is a person who has never heard the names Mowgli or Rikki-Tikki-Tavi.
This book contains 5 amazing stories, written more than 100 years ago. Funny, wise, and instructive, they tell about unusual animals, explain how armadillos appeared, and how a crab got its strong, sharp claws, why the elephant has a long trunk, and the leopard - spots, and also reveal the 'secret' of the whale.
For younger school age. The texts of the works are presented without abbreviations.