Translate the text into English. In the underwater world, whales and dolphins lead an unusual way of life. Their world is completely different from ours, and we can only peek into it. The blue whale is the largest animal on the planet. Moreover, it is the largest animal that has ever lived on Earth. For millions of years these gigantic whales and their superintelligent brothers—the dolphins—ruled the underwater world. Our relations with them have not always been friendly. Earlier we hunted them. But now we extend a hand to them and feel a sense of wonder. Together with researchers who have devoted their lives to them, we will meet the most amazing whales and dolphins, uncover their secrets, hear their voices. The enigmatic voices of whales and dolphins have fed the imagination for centuries. Perhaps scientists will someday learn the truth about the wondrous voices of the ocean. But for now, the private lives of the giants of the ocean remain shrouded in mystery. Dear users! To avoid losing us, bookmark this address: CTRL+D