Sand Tiger Sharkシロワニ
Carcharias taurusCR— Critically Endangered
The sand tiger shark (Carcharias taurus), called shirowani in Japan, is a large, fierce-looking but docile shark found in temperate and tropical waters worldwide except the eastern Pacific, typically reaching 2.2-2.5 m and up to 3.2 m long. It swallows air at the surface to fine-tune its buoyancy, hunts bony fish, other sharks, rays, crustaceans, and squid, and is one of the few sharks known to practice intrauterine cannibalism, in which the most developed embryo consumes unfertilized eggs and siblings in the womb. Despite its intimidating look, it is classified Critically Endangered by the IUCN due to a sharp population decline since 1980.
Sand Tiger Shark (reference photo)
Species Data
Did You Know?
- Despite its fearsome appearance, it has a docile temperament and no confirmed human fatalities are attributed to it; some researchers have nicknamed it a "giant puppy dog." Source
- It practices intrauterine cannibalism, in which the most developed embryo in the womb feeds on unfertilized eggs and its own siblings. Source
- Lacking a swim bladder, it gulps air at the surface and stores it in its stomach to help maintain neutral buoyancy. Source
Where to See This Species
8 facilities · 0 individuals
すみだ水族館 (Sumida Suizokukan)Tokyo東武スカイツリーライン「とうきょうスカイツリー」駅すぐ。
すみだ水族館のWikipedia記事に飼育種として記載 Source
マリンワールド海の中道 (Marin World Uminonakamichi)FukuokaJR博多駅から鹿児島本線で香椎駅まで11分、JR香椎線（西戸崎行き）に乗り換え「海ノ中道駅」まで20分。
マリンワールド海の中道のWikipedia記事に飼育種として記載 Source
京急油壺マリンパーク (Keikyuuaburatsubomarin Park)KanagawaOpened in 1968
京急油壺マリンパークのWikipedia記事に飼育種として記載 Source
Toba AquariumMieOpened in 1955
鳥羽水族館のWikipedia記事に飼育種として記載 Source
しながわ水族館 (Shinagawa Suizokukan)TokyoOpened in 1991
シロワニのWikipedia記事に飼育施設として記載 Source
Kobe Suma Sea WorldHyogoOpened in 2024
シロワニのWikipedia記事に飼育施設として記載 Source
登別マリンパークニクス (Noboribetsumarin Park Nikusu)HokkaidoJR登別駅から徒歩約5分。
シロワニのWikipedia記事に飼育施設として記載 Source
東海大学海洋科学博物館 (Toukaidaigakukaiyoukagaku Hakubutsukan)Shizuoka
シロワニのWikipedia記事に飼育施設として記載 Source
Source links to official sites, official YouTube channels, and news aggregators such as Zoo Ring. Visit the publisher for the full item.
Conservation Story
Conservation Status
IUCNではCRに分類されています。
Habitat
世界の温帯・熱帯の沿岸海域。
Threats
- 漁業による捕獲
- 繁殖力の低さ
Conservation & Breeding Efforts
- 飼育下での繁殖研究
- 飼育施設間の情報共有
Sources
Support Conservation
A visit is a small, positive way to support the daily lives of the animals you care about.
- Visit
- A visit itself helps support the facility.
- Animal Supporter Programs & Giving
- Find ways to support the facility through its official website.
- Furusato Nozei
- Municipally run facilities may share official guidance for this Japanese hometown-tax program.
- Support すみだ水族館 (Sumida Suizokukan)
- Support マリンワールド海の中道 (Marin World Uminonakamichi)
- Support 京急油壺マリンパーク (Keikyuuaburatsubomarin Park)
- Support Toba Aquarium
- Support しながわ水族館 (Shinagawa Suizokukan)
- Support Kobe Suma Sea World
- Support 登別マリンパークニクス (Noboribetsumarin Park Nikusu)
- Support 東海大学海洋科学博物館 (Toukaidaigakukaiyoukagaku Hakubutsukan)
FAQ
- Is the sand tiger shark dangerous to humans?
- No confirmed human fatalities are attributed to it; despite its toothy look, it has a docile temperament, earning it the nickname "giant puppy dog" among some researchers. Source
- What is intrauterine cannibalism?
- It is the sand tiger shark's unusual reproductive strategy in which the most developed embryo in the womb eats unfertilized eggs and its own siblings before birth. Source
- How does the sand tiger shark control its buoyancy?
- Lacking a swim bladder, it gulps air at the water's surface and holds it in its stomach to help it hover motionlessly. Source
Source: ja.wikipedia.org en.wikipedia.org