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發表於 2018-7-15 23:57:56
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灣鱷(學名:Crocodylus porosus),又名河口鱷、鹹水鱷、食人鱷、入江鱷,為23個鱷科物種中最大型的,亦是現存世界上最大的爬行動物。
雄性鱷魚成年後體長可達5米,最大6米以上。雌性成年體長約2.5至3米,最大4米。成年雄鱷體重可達300公斤至400公斤,最大超過1000公斤以上。成年雌鱷最大200公斤左右。幼體呈淡褐色,身軀及尾部有黑色的斑點條紋。成體顏色較深,腹部淡黃色或白色,尾巴底部末端灰色。
The saltwater crocodile (Crocodylus porosus), also known as the estuarine crocodile, Indo-Pacific crocodile, marine crocodile, sea crocodile or informally as saltie, is the largest of all living reptiles, as well as the largest riparian predatorin the world. Males of this species can reach sizes up to at least 6.30 m (20.7 ft) and possibly up to 7.0 m (23.0 ft) in length. However, an adult male saltwater crocodile rarely reaches or exceeds a size of 6 m (19.7 ft) weighing 1,000 to 1,200 kg (2,200–2,600 lb). Females are much smaller and often do not surpass 3 m (9.8 ft).
Male size: An adult male saltwater crocodile, from young adults to older individuals, ranges 3.5 to 6 m (11 ft 6 in to 19 ft 8 in) in length, weighing 200 to 1,000 kg (440–2,200 lb). On average, adult males range 4.3 to 4.9 m (14 ft 1 in to 16 ft 1 in) in length and weigh 408 to 522 kg (899–1,151 lb).However average size largely depends on the location, habitat, and human interactions, thus changes from one study to another, when figures of each study are viewed separately.
A large male from Philippines, named Lolong, was the largest saltwater crocodile ever caught and placed in captivity. He was 20 ft 3 in (6.17 m), and weighed 2,370 lbs (1,075 kg). Believed to have eaten two villagers, Lolong was captured on 3 September 2011, and died in captivity on 10 February 2013.
Size comparison of adult male human vs. adult male C. porosus 鹹水鱷和人類比較圖
Megalania (Megalania prisca or Varanus priscus) 古巨蜥
古巨蜥(學名:Varanus priscus)又名巨齒蜥,是一種已滅絕的巨型巨蜥。牠們生存於更新世的南澳洲,約於4萬年前消失。最早到達的澳洲原住民可能曾與之一同生活。
古巨蜥沒有留下完整或接近完整的骨骼,故很難確定其大小。 早期估計牠們最大約有7米長,及重600-620公斤。 於2002年,史蒂芬•羅(Stephen Wroe)就認為古巨蜥最多只有4.5米長及重331公斤,而平均則長3.5米及重97-158公斤。 他認為早期的計算是基於錯誤的方法及跨大了其體型。
不過,Ralph Molnar於2004年基於脊骨及總體長的研究,指古巨蜥的體長有幾種可能性。 若古巨蜥像樹巨蜥般擁有幼長的尾巴,牠們有可能長達7.9米;若牠們的尾巴與體型的比例像科莫多龍,其體長約有7米。以7米的體長來計算,牠們可以重達1940公斤.而平均重320公斤。
古巨蜥和人類比較圖
Name: Varanus priscus
Phonetic: Vah-ran-us priss-cuss.
Named By: Varanus was established by Blasius Merrem in 1820. The species Varanus priscus was originally named as Megalania prisca by Richard Owen in 1859.
Synonyms: Megalania prisca.
Classification: Chordata, Reptilia, Squamata, Platynota, Varanoidea, Varanidae.
Species: V. priscus.
Diet: Carnivore.
Size: Estimated between 4.5 and 7 meters long, sometimes estimated being slightly bigger at up to 8 meters long, depending upon similarity to other large lizards.
Known locations: Australia.
Time period: Pleistocene.
Fossil representation: Scattered and incomplete remains.
[GoogleDrive]174xFtwu7SbL8qiYWsVUF-ZvmhokyJvFI[/GoogleDrive]
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