The Gharial has a long, narrow snout. This is the feature that is most different from most other Crocodilia. The only other species who has such a snout is the False gharial ("Tomistoma schlegelii"), which is closely related. The shape of this snout changes when the animal grows older. The snout becomes progressively thinner the older the gharial gets. There is a bulbous growth on the tip of the male's snout. This is called a 'ghara' (after the Indian word meaning 'pot'). It is only present in mature animals. It is used for different activities, such as making a resonant hum during vocalization. It is also used for attracting females. The mating ritual includes a section where the male uses this ghara to make bubbles.