False gharial

The false gharial, scientifically known as *Tomistoma schlegelii*, is a unique freshwater crocodilian.

It belongs to the family Gavialidae. This species is also known as the Malayan gharial or the Sunda gharial. These animals are native to Peninsular Malaysia and the islands of Borneo, Sumatra, and Java. They are currently listed as Endangered on the IUCN Red List. Experts estimate there are only 2,500 to 10,000 mature individuals remaining in the wild.

Understanding these animals is important for protecting freshwater ecosystems.

The physical appearance of the false gharial is very distinct.

Their bodies are dark reddish-brown on top. They feature dark brown or black spots and cross-bands on the back and tail. The undersides, or ventrals, are grayish-white with some dark mottling on the sides. One of their most striking features is an extremely long and slender snout. This snout is smooth, unornamented, and parallel-sided. It is 3.0 to 3.5 times longer than it is wide at the base. Inside the jaws, the teeth are long and needle-like. These teeth are individually socketed and interlock on the inside of the jaws.

Size and skull structure are remarkable in this species.

The false gharial appears to have the largest skull of any living crocodilian. This is largely due to the extreme length of its slender snout. In fact, six of the eight longest crocodilian skulls found in museums belong to this species. The longest recorded skull measured 64.5 centimeters in length. The lower jaw, or mandible, measured 43.5 centimeters. Based on skull-to-body ratios, these massive animals can reach significant sizes. Females can grow up to 3 meters in length. Males are even larger, reaching up to 5 meters and weighing up to 200 kilograms.

The history of how we identify this animal is quite interesting.

Salomon Müller first proposed the scientific name *Crocodilus (Gavialis) schlegelii* in 1838. He did this after describing a specimen collected in Borneo. In 1846, he suggested the name *Tomistoma schlegelii* for a distinct genus. The species name honors the naturalist Hermann Schlegel. While the snout looks similar to true crocodiles, DNA sequencing tells a different story. Recent molecular studies show they belong to the Gavialoidea group. This means they are more closely related to true gharials than to crocodiles.

Dietary habits of the false gharial are more diverse than once thought.

Scientists used to believe they only ate fish and very small vertebrates. However, recent evidence shows they are generalists. This means they eat a wide variety of foods. In addition to fish and small aquatic animals, adults prey on larger animals. They have been known to eat proboscis monkeys, macaques, deer, and water birds. They also eat other reptiles. Some accounts even suggest they may attack larger animals like cows. This broad diet makes them an ecological equivalent to certain Neotropical crocodiles.

Reproduction in this species involves specific environmental timing and methods.

The false gharial is a mound-nester. This means females build mounds to lay their eggs. They lay small clutches containing between 13 and 35 eggs. Interestingly, these may be the largest eggs of any living crocodilian. Sexual maturity is reached at a length of about 3 meters. This is quite large compared to other crocodilians. Courtship typically happens during periods of rainfall. This occurs from November to February and again from April to June.

Today, the false gharial faces serious threats to its survival.

Habitat loss is a primary concern. Freshwater swamps are being drained to create oil palm plantations. In eastern Sumatra, the habitat has shrunk by 30% to 40%. They are also hunted for their meat and skin. Additionally, their eggs are often harvested for human consumption. These factors have led to disconnected populations. This creates a risk of genetic isolation. Governments in Malaysia and Indonesia are working to prevent their extinction.