Once upon a time there was a young and very smart dolphin named Flipper at the bottom of the ocean. He dreamed of discovering all the secrets of the seas and oceans. Once Flipper met a killer whale in his travels, which he had never seen before. Hi, killer whale! Flipper said. Hello, dolphin! - answered the killer whale. – Tell me, please, how is it to be a killer whale? Flipper asked. – This is very interesting! smiled the killer whale. – I have studied the seas and oceans for a long time. A...