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Gavialis gangeticus

Last updated: February 16, 2021
Verified by: IMP
Image Credit Harsha K R / Creative Commons

Males blow bubbles using the bump on their snout!

Gharial Scientific Classification

Scientific Name
Gavialis gangeticus

Read our Complete Guide to Classification of Animals.

Gharial Conservation Status

Gharial Locations

Gharial Locations

Gharial Facts

Fish, crustaceans, waterfowl, frogs
Name Of Young
Group Behavior
  • Solitary
Fun Fact
Males blow bubbles using the bump on their snout!
Estimated Population Size
Biggest Threat
Habitat loss and hunting
Most Distinctive Feature
Long and slender snout
Other Name(s)
Indian gharial, Fish-eating gharial, Gavial
Incubation Period
3 months
Age Of Independence
1 – 2 years
Wide and calm slow-moving rivers
Humans, Snakes, Birds of prey
  • Nocturnal
Common Name
Number Of Species
Northern India and Nepal
Found in the murky waters of Northern India!

Gharial Physical Characteristics

  • Grey
  • Olive
Skin Type
Plate-like scales
Top Speed
15 mph
30 – 50 years
150kg – 250kg (330.7lbs – 551lbs)
3.6m – 6.5m (11.8ft – 21ft)
Age of Sexual Maturity
10 years

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Gharial Classification and Evolution

The gharial is a large sized reptile that is found inhabiting the murky waters of slow-moving rivers on the Indian subcontinent. Closely related to other crocodilians including crocodiles, alligators and caimans, gharials are animals that have existed on Earth for over 200 million years and have changed little in their evolution since. Like the other members of the crocodilian group, gharials are archosaurs which is a group of reptiles that included the dinosaurs and are not closely related to other more modern reptile species that belong to a separate group completely. However, unlike the dinosaurs which disappeared 65 million years ago, the adaptations that crocodilians possess means that they are incredibly well adapted to their habitats and have therefore been able to continue to thrive as a species. Today however, the gharial (also known as the Indian gharial, gavial and the fish-eating gharial) is listed as an animal that is critically endangered due to severe population declines over the past 100 years.

Gharial Anatomy and Appearance

Gharials share a number of characteristics with other crocodilian species including the hard, plate-like scales that protect their bodies from both sunburn and attack from predators. These olive or grey coloured toughened scales are also waterproof and help to prevent their body from drying out. The gharial is easily recognisable among crocodilians due to its long, slender snout which is lined small and incredibly sharp interlocking teeth. Male gharials have a bulbous growth on the end of their long snout which is used for making vocalisations and for blowing air bubbles in the water which are important in their mating displays. Unlike crocodiles and alligators that have strong hind legs and can move quickly on land, the legs of the gharial are comparatively weak and are not suitable for moving around on land. Gharials therefore spend most of their time in the water, only leaving to bask in the sun on the muddy banks and to lay their eggs. Gharials are animals that have eyes that are situated on the very top of their head which allows them to remain submerged and unseen by both prey species and potential predators whilst still allowing them to keep watch on their surroundings. The same applies to their nostrils at the end of their long snout which means that they can still breathe but can stay hidden for long periods of time.

Gharial Distribution and Habitat

Historically, gharials had a wide distribution throughout the Indian subcontinent from Pakistan in the west, across to parts of Myanmar and south into India. Today however, they are confined to small and increasingly more isolated regions in Northern India and Nepal. They prefer the calmer, wide backwaters of slow-moving rivers where they are able to swim more easily using their flattened tails and webbed hind feet. The degradation of their freshwater habitats has had enormous implications to both gharial species and has contributed to their severe population declines in modern times. Their almost solely aquatic lifestyle means that gharials are heavily dependant on healthy river systems, and when these decline so do the number of individuals that exist in them.

Gharial Behaviour and Lifestyle

Unlike other crocodilian species that are semiaquatic and even hunt on land in some cases, gharials spend almost all of their time in the water and only leave to warm their bodies up by basking in the sun and to make nests. Their weak leg muscles mean that gharials have to drag themselves onto the river banks. In the same way as similar species, gharials are unable to regulate their body temperature internally and instead rely on their surroundings to do it for them. By basking in the sun, they are able to warm their bodies up in order to gain the energy that they need for hunting and are then able to cool them down when they are submerged in the water. When they enter the water, gharials sink their bodies down leaving just their eyes and nostrils exposed on the surface. Their bodies and tail hang down when they are floating and their hind feet act as brakes to stop them from sinking completely. Gharials use their webbed toes which are spread widely and allow them to descend slowly down without disturbing the water when they are trying to remain hidden from predators.

Gharial Reproduction and Life Cycles

During the mating season, male gharials become fiercely territorial and use vocalisations and bubble displays created by the bulbous bump on the end of their snout to attract and assemble a harem of females which they mate with in the water. After mating, female gharials leave the water to lay their eggs in a nest that is a good distance away from the water to prevent it from becoming flooded. Between 30 and 50 hard, leathery eggs are laid between March and May that weigh around 150g each. Female gharials protect their eggs and young when they emerge but unlike other crocodilian species that help their young into the water by carrying them in their mouths, female gharials are unable to do this because of the shape of their snouts. Juvenile gharials remain close to their mothers until they are large enough to defend themselves again predators, and are able to breed when they are around ten years old.

Gharial Diet and Prey

Gharials are carnivorous reptiles that primarily feed on fish in the water but will also sometimes take aquatic birds should the opportunity arise. Their specially adapted long, thin snouts contain over 100 small, razor-sharp teeth which are used to sink into their prey when they snap their powerful jaws shut. Gharials, are unable to chew their food and instead swallow it whole. Gharials use sensors to detect vibrations in the water that signalises approaching prey. They catch fish in the water by lying in wait before quickly snapping them side-on and flicking them back into their mouths and swallowing them headfirst. Juvenile gharials that haven’t refined their techniques at successfully catching the slippery fish, will also often feed on small crustaceans and frogs that they find in the water. The delicate shape of their narrow jaws means that gharials are unable to catch larger prey species.

Gharial Predators and Threats

Due to their large size and aquatic nature, adult gharials have no real natural predators within their environments. The smaller and more vulnerable juveniles though, are threatened by a number of animal species including birds of prey and large reptiles including snakes. People are really the only threat to gharials in their natural environment. They have been excessively hunted for their skins and meat throughout their once wide range, and nests are often raided by people for their eggs. Gharials have also been hunted as their body parts are used in some traditional medicines. Hunting aside, gharials are also heavily threatened by habitat loss which has played a major part in their demise as a species throughout much of their natural range. Not only have they been affected by the degradation in the quality of the water, but also human interferences such as mining, net fishing and dams to create land for agriculture and grazing has had a severe impact on the abundance of these freshwater habitats and therefore, gharial population numbers.

Gharial Interesting Facts and Features

Like other members of the crocodilian family, gharials have slit-like pupils that open wide during the darkness of night to allow them to see better. This night vision is also greatly improved by a special layer at the back of the eye, which reflects as much light as possible into their eyes. Due to the fact that their eyes are set so close together and face forward, gharials are able to see in three dimensions which helps them to judge distances more accurately. Gharials also have a special, transparent third eyelid that they are able to cover each eye with to protect them when they fully submerge themselves in the water. Along with this, they have external flaps that close over their ears and nostrils to protect them from the incoming water, and a flap that closes at the back of their mouths to prevent water from entering their lungs.

Gharial Relationship with Humans

Gharials have been severely affected by growing human populations throughout their natural range. Hunting, habitat loss and fishing for their prey species has led to severe population declines for the species throughout the Indian subcontinent. Unlike other members of the crocodilian family that can (and do) pose a threat to human life as they are able to hunt people, the narrow shape of the gharial’s snout means that they are unable to hunt people and therefore don’t. The increase in human activity in their native environments has pushed the remaining gharial populations in smaller and more increasingly isolated regions and they are now therefore only found in two countries.

Gharial Conservation Status and Life Today

Today, the gharial is listed as an animal that is critically endangered in its natural environment by the IUCN. It is estimated that their population number has declined by up to 98% over the past century, with gharials nearly becoming extinct in the 1970s due to the severity of hunting and habitat loss. Gharials are now a protected species and although hunting has certainly decreased, they are still heavily affected by the loss of their habitats and getting caught up in fishing nets, even in areas that are actually protected by law.

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Gharial FAQs (Frequently Asked Questions) 

Are Gharials herbivores, carnivores, or omnivores?

Gharials are Carnivores, meaning they eat other animals.

What Kingdom do Gharials belong to?

Gharials belong to the Kingdom Animalia.

What class do Gharials belong to?

Gharials belong to the class Reptilia.

What phylum to Gharials belong to?

Gharials belong to the phylum Chordata.

What family do Gharials belong to?

Gharials belong to the family Gavialidae.

What order do Gharials belong to?

Gharials belong to the order Crocodilia.

What type of covering do Gharials have?

Gharials are covered in Plate-like scales.

What genus do Gharials belong to?

Gharials belong to the genus Gavialis.

Where do Gharials live?

Gharials live in northern India and Nepal.

In what type of habitat do Gharials live?

Gharials live in wide and calm slow-moving rivers.

What are some predators of Gharials?

Predators of Gharials include humans, snakes, and birds of prey.

What is an interesting fact about Gharials?

Gharials are found in the murky waters of Northern India!

What is the scientific name for the Gharial?

The scientific name for the Gharial is Gavialis gangeticus.

What is the lifespan of a Gharial?

Gharials can live for 30 to 50 years.

How many species of Gharial are there?

There are 2 species of Gharial.

What is the biggest threat to the Gharial?

The biggest threats to the Gharial are habitat loss and hunting.

What is another name for the Gharial?

The Gharial is also called the Indian gharial, fish-eating gharial, or gavial.

How many Gharials are left in the world?

There are 182 Gharials left in the world.

How fast is a Gharial?

A Gharial can travel at speeds of up to 15 miles per hour.

  1. David Burnie, Dorling Kindersley (2011) Animal, The Definitive Visual Guide To The World’s Wildlife
  2. Tom Jackson, Lorenz Books (2007) The World Encyclopedia Of Animals
  3. David Burnie, Kingfisher (2011) The Kingfisher Animal Encyclopedia
  4. Richard Mackay, University of California Press (2009) The Atlas Of Endangered Species
  5. David Burnie, Dorling Kindersley (2008) Illustrated Encyclopedia Of Animals
  6. Dorling Kindersley (2006) Dorling Kindersley Encyclopedia Of Animals
  7. IUCN Red List, Available here:

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