Wednesday, December 19, 2012

Wildlife of Gharial


The Gharial (Gavialis gangeticus) is a family of crocodiles from the original Gavialidae Indian subcontinent and also mentioned gavial crocodiles and fish-eating. As the species has experienced a good long-term and short-term chronic rapid decline was registered as Critically Endangered by the IUCN.

Gharial is one of three original crocodile India, apart from the crocodile and saltwater crocodile robbers. This is one of the longest of all living crocodilians.The Nepali word Ghara means earthenware pot, pitcher, watervessel.

Gharial is characterized by very long, thin jaws, considered as an adaptation to the fish-dominated diet. Men reach up to 6 m (20 ft) with an average weight of around 160 kg (350 lb).

This is a dark olive or light upon the dark cross-bands and spots on the head, body, and tail. Dorsal surface becomes dark gray-almost black in about 20 years. Ventrals yellowish white. The neck is elongated and thick. The dorsals are more or less restricted to the median from behind. The fingers are very short and thick with web emarginated. Men develop a perforated nose protrusion at sexual maturity.

Growth rounded at the tip of their nose called Ghara used to adjust and strengthen the "hiss" snorted through the underlying nostrils. Produced voice could be heard for nearly a mile on still. The Ghara make gharials the only extant crocodile with sexual dimorfisme seen. Despite Ghara function is not well understood, it seems to be used as an indicator of visual sex, as voice resonators, or bubble or related sexual behavior.

The average size of mature gharials is 3.5 to 4.5 m (11 to 15 feet). The maximum record size is 6.25 m (20.5 ft). Tukik estimated 37 cm (15 in). Young Gharials can reach a length of 1 m (3.3 ft) in eighteen months.

Average weight range 159-250 kg (350-550 lb). Men generally reach a total length of 3 to 5 m (9.8 to 16 ft), while females are smaller and reach a length of the body to 2.7 to 3.75 m (8.9 to 12.3 ft).

The nozzle, narrow elongated limited by 110 sharp teeth interdigitated, and be proportionally shorter and thicker as animals age. Lateral tail growing nicely flat and webbed hind feet provide exceptional maneuver capability in marine habitats. On land, however, an adult Gharial can just push yourself forward and glide with his stomach. Laterally compressed tail works well to motivate animals and as a base to attack their prey.

Some 27 to 29 above and 25 or 26 lower teeth on each side. These teeth are not received into interdental pits, mandibular teeth first, second, and third in the notch in the upper jaw. Front teeth are the largest. Narrow snout and long, with a widening at the tip and nose bones are relatively short and are widely separated from the pre-maxillaries. Gharial nasal opening that is smaller than the supra-temporal fossa. Lower anterior margin of orbit (Jugal) is raised and simfisis mandible very long, extending even to the teeth 23 or 24.

A dorsal shield is formed from four longitudinal series of juxtaposed, fell unconscious, and composed of bone scales. Long nozzle is 3.5 (in adults) to be 5.5 times (in young) the extent of the nozzle base. Scutes nuchal and dorsal shield continuous form consisting of 21 individuals or 22 transverse series. Outside line Scutes Gharials have soft, smooth, or weak fainted while Scutes dorsal bone. They also have two small post-occipital Scutes. The toes of the external two-thirds webbed, while the middle finger is just one-third webbed. They have a powerful symbol on the outer edges of the arms, legs, and feet. Typically, adult gharials have dark olive color tone while young pale olive, with dark brown spots or cross-bands.

Three largest examples reported is 6.5 m (21 ft) Gharial lost in Gogra River of Faizabad in August 1920; 6.3 m (21 ft) individual shot in Cheko River of Jalpaiguri in 1934, and monsters from 7 m (23 ft), which was shot in north Bihar Kosi River in January 1924. Although specimens over 6 m (20 ft) are not rare in, the last person that significant current whereabouts unknown.

More improve swimming ability, relative Gharial cylindrical body, as opposed to the body, broader strapping from saltwater or Nile crocodile is built to capture a variety of prey from the riverfront.

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