UPPSC 2015 General Studies I Solved Paper

(c) There are about 65 different species of toothed whales. Toothed whales, including all dolphins and porpoises, have teeth, only one blowhole (baleen whales have two)and are generally smaller than most baleen whales. The largest of toothed whale longer than 13 metres is the sperm whale (they can measure up to 18 metres).