ৰাজফেঁটী সাপ

অসমীয়া ৱিকিপিডিয়াৰ পৰা

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ৰাজফেঁটী সাপ (King cobra)
A captive king cobra in Puttur, India
সংৰক্ষণ স্থিতি
বৈজ্ঞানিক শ্ৰেণীবিভাজন e
Unrecognized taxon (fix): Ophiophagus
Species: O. hannah
Binomial name
Ophiophagus hannah
Cantor, 1836
  Distribution of the king cobra
Synonyms

Genus-level:

ৰাজফেঁটী সাপ (ইংৰাজী: king cobra, বৈজ্ঞানিক নাম-Ophiophagus hannah) পৃথিৱীৰ আটাইতকৈ দীঘল বিষধৰ সাপ (venomous snake)ৰ প্ৰজাতি৷ ইয়াৰ দেহৰ দৈৰ্ঘ্য প্ৰায় ১৮.৫-১৮.৮ ফুট পৰ্যন্ত হোৱা দেখা যায়৷[1] এই সাপবিধ ঘাইকৈ ভাৰতকে ধৰি দক্ষিণ-পূব এছিয়াৰ বনাঞ্চল সমূহত দেখা পোৱা যায়৷ ৰাজফেঁটী সাপক বিভিন্ন কাৰণত জনমানসত বিপদজনক বুলি গণ্য কৰা হয়৷

বিৱৰণ[সম্পাদনা কৰক]

ৰাজফেঁটী সাপৰ দেহৰ দৈৰ্ঘ্য প্ৰায় ৩-৪ মিটাৰ আৰু ওজন প্ৰায় ৬ কিলোগ্ৰাম হোৱা দেখা যায়৷

Scalation of the king cobra

ইয়াৰ গাৰ ছালৰ বৰণ জলফাই বৰণীয়া হয়৷ সমগ্ৰ দেহটোত পাতল হালধীয়া আঁচ কিছুমান ঘুৰণীয়াকৈ থাকে৷ ইয়াৰ পেট অংশ শেঁতা বগা বা হালধীয়া হয়৷ The belly is cream or pale yellow, and the scales are smooth. Juveniles are shiny black with narrow yellow bands . The head of a mature snake can be quite massive and bulky in appearance, though like all snakes, they can expand their jaws to swallow large prey items. The male is larger and thicker than the female. The average lifespan of a wild king cobra is about 20 years.[2]The dorsal scales along the centre of the king cobra's body have 15 rows. Males have 235 to 250 ventral scales, while females have 239 to 265. [3]

বিতৰণ[সম্পাদনা কৰক]

The king cobra is distributed across the Indian Subcontinent, Southeast Asia, and the southern areas of East Asia (where it is not common). It lives in dense highland forests,[4] preferring areas dotted with lakes and streams.

আচৰণ[সম্পাদনা কৰক]

A king cobra, like other snakes, receives chemical information via its forked tongue, which picks up scent particles and transfers them to a special sensory receptor (Jacobson's organ) located in the roof of its mouth.[1] [5] and sensitivity to earth-borne vibration to track its prey.King cobras are able to hunt throughout the day, although it is rarely seen at night, leading most herpetologists to classify it as a diurnal species.

A king cobra in the St. Louis Zoo with the hood retracted

খাদ্য[সম্পাদনা কৰক]

The king cobra's its diet consists primarily of other snakes, including ratsnakes, small pythons and even other venomous snakes such as various members of the true cobras (of the genus Naja), and even the much more venomous krait. When food is scarce, they may also feed on other small vertebrates, such as lizards, birds, and rodents. In some cases, the cobra may "constrict" its prey, such as birds and larger rodents, using its muscular body, though this is uncommon.

A king cobra in its defencing posture (mounted specimen at the Royal Ontario Museum).

প্ৰজনন[সম্পাদনা কৰক]

A juvenile king cobra

The king cobra is unusual among snakes in that the female king cobra is a very dedicated parent. She makes a nest for her eggs, scraping up leaves and other debris into a mound in which to deposit them, and remains in the nest until the young hatch. A female usually deposits 20 to 40 eggs into the mound, which acts as an incubator. She stays with the eggs and guards the mound tenaciously, rearing up into a threat display if any large animal gets too close, for roughly 60 to 90 days.[6] Inside the mound, the eggs are incubated at a steady ২৮ °C (৮২ °F).

স্থিতি তথা সংৰক্ষণ[সম্পাদনা কৰক]

King Cobras are placed under Schedule II of Wildlife Protection Act, 1972 (as amended) and a person guilty of killing the snake can be imprisoned for up to 6 years.[7]

তথ্যসুত্ৰ[সম্পাদনা কৰক]

  1. 1.0 1.1 Mehrtens, John (1987). Living Snakes of the World. প্ৰকাশক New York: Sterling. ISBN 0-8069-6461-8. 
  2. উদ্ধৃতি ত্ৰুটি: অবৈধ <ref> টেগ; NG নামৰ refৰ বাবে কোনো পাঠ্য প্ৰদান কৰা হোৱা নাই
  3. Venomous Land Snakes, Dr.Willott. Cosmos Books Ltd. ISBN 988-211-326-5. 
  4. Miller, Harry (September 1970). "The Cobra, India's 'Good Snake'". National Geographic খণ্ড 20: 393–409. 
  5. Philadelphia Zoo – King cobra. philadelphiazoo.org
  6. Piper, Ross (2007). Extraordinary Animals: An Encyclopedia of Curious and Unusual Animals. প্ৰকাশক Westport, Connecticut: Greenwood Press. ISBN 0-313-33922-8. 
  7. B Sivakumar (2 July 2012). "King cobra under threat, put on red list". Bennett, Coleman & Co. Ltd.. http://articles.timesofindia.indiatimes.com/2012-07-02/chennai/32507498_1_longest-venomous-snake-king-cobras-iucn। আহৰণ কৰা হৈছে: 7 July 2013. 

বাহ্যিক সংযোগ[সম্পাদনা কৰক]