Are whales related to dolphins?
Yes, dolphins are a kind of whale, so all dolphins are whales, but not all whales are dolphins. Other kinds of whales (that are not dolphins) include baleen whales (like gray whales and humpbacks), sperm whales, porpoises, river dolphins, beluga whales and narwhals, and beaked whales. For more information on whales, view the Baleen Whales, Beluga Whale, Bottlenose Dolphin, Killer Whale, and Toothed Whales infobooks.