Saltwater Crocodileイリエワニ
Crocodylus porosusLC— Least Concern
The saltwater crocodile is the largest living reptile, ranging from India's east coast across Southeast Asia to northern Australia and occasionally straying as far as southern Japan. Powerful swimmers that use ocean currents to travel long distances between rivers and islands, they possess the strongest bite force ever measured in a living animal and prey on an unusually broad range of species, from fish and birds to large mammals. Despite their fearsome reputation, populations in Australia have rebounded strongly since hunting bans in the 1970s, and the species is currently listed as Least Concern by the IUCN.
Saltwater Crocodile (reference photo)
Species Data
Did You Know?
- It has the strongest measured bite force of any living animal, recorded at 16,414 N, with the largest individuals potentially reaching 27,531 to 34,424 N. Source
- It is the largest living reptile and the largest of all crocodilians, exceeding every other crocodile, caiman, or alligator species in both length and weight. Source
- "Lolong," captured in the Philippines in September 2011, measured 6.17 m—the largest crocodile ever held in captivity—and was believed responsible for attacks that killed three local residents. Source
Where to See This Species
1 facilities · 0 individuals
東京都恩賜上野動物園 (Toukyoutoonshiueno Doubutsuen)TokyoOpened in 1882
東京都恩賜上野動物園のWikipedia記事に飼育種として記載 Source
Conservation Story
Conservation Status
IUCNでLC（低懸念）。地域によっては生息地保全と人との軋轢の管理が課題です。
Habitat
河口、マングローブ、沿岸の汽水域と河川。
Threats
- 湿地の消失
- 違法捕獲
- 人との衝突
Conservation & Breeding Efforts
- 湿地保全
- 個体群管理
- 保護と安全対策の両立
Sources
Support Conservation
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FAQ
- How big does a saltwater crocodile get?
- Males typically average 4 to 4.5 meters and can exceed 6 meters, weighing up to around 1,100 kg on average with the largest individuals reaching roughly 2,000 kg; it is the largest living reptile. Source
- How strong is a saltwater crocodile's bite?
- It has the strongest bite force ever measured in a living animal, recorded at 16,414 newtons, with estimates for the largest individuals potentially exceeding 27,000 newtons. Source
- Can saltwater crocodiles travel between islands?
- Yes. They are strong swimmers that ride ocean currents to cover long distances at sea, which explains occasional sightings far from their core range, including rare strays reaching southern Japan. Source
Source: ja.wikipedia.org en.wikipedia.org