Giant Salamanders
探検両生類
Giant Salamanders
cryptobranchidae
Giant salamanders of the family Cryptobranchidae are living fossils that have remained largely unchanged for over 160 million years. These ancient, fully aquatic amphibians include the largest salamander species on Earth, such as the Chinese and Japanese giant salamanders, as well as the North American hellbender. Spending their entire lives in cool, fast-flowing mountain streams, they possess flat bodies, wrinkled skin, and tiny, lidless eyes that perfectly suit their low-light, riverbed lifestyle. As apex predators of their freshwater ecosystems, they play an essential role in keeping populations of aquatic insects, crayfish, and fish in check.
生息地: Typically found in cool, clear, fast-flowing mountain streams and rivers with abundant large rocks for shelter.
外見
These massive amphibians feature incredibly flat heads and bodies with heavily wrinkled, loose skin along their sides, which increases their surface area for absorbing oxygen. Their coloration is cryptic, ranging from mottled shades of brown, grey, and black to match the rocky riverbeds they inhabit. They have small, lidless eyes, broad mouths, and stout limbs with four toes on the front feet and five on the hind feet. Depending on the species, they can range from 30 centimeters in length to a staggering 1.8 meters, making them easily distinguishable from any other salamander.
界Animalia門Chordata綱Amphibia目Caudata
カテゴリ
両生類レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
Because they lack gills as adults and have tiny, inefficient lungs, they perform almost all of their breathing directly through their wrinkled skin.
Giant salamanders are sometimes called 'living fossils' because their lineage dates back over 160 million years to the Jurassic period.
The Chinese Giant Salamander can grow up to 1.8 meters (nearly 6 feet) long, making it the largest amphibian in the world.
When threatened, giant salamanders can secrete a sticky, white mucus that smells like pepper, earning the hellbender the colloquial nickname 'lasagna lizard' due to its wavy skin.
特殊能力
能力
Cutaneous Respiration
They absorb oxygen directly from the water through highly folded, vascularized skin folds, allowing them to survive without frequently surfacing to breathe.
能力
Asymmetrical Suction Feeding
They drop one side of their lower jaw to create a powerful pressure vacuum, sucking in aquatic prey in milliseconds.
能力
Sensory Lateral Lines
They possess specialized sensory nodes along their head and body that detect minute pressure changes and vibrations in the water.
サイズと詳細
- 長さ
- 30-180 cm
- 体重
- 1.5-50 kg
- 寿命
- 30-60 年
- 一度の産卵数
- 150-500
- 抱卵期間
- 50-80 日
食性と食事
They are opportunistic aquatic predators that feed primarily on river-dwelling invertebrates and small vertebrates, capturing them using rapid suction.
主な食物
- Crayfish
- Fish
- Frogs
- Aquatic Insects
- Crabs
採餌方法
- Ambush Predator Suction Feeder At Night Using Tactile Sensors To Locate Prey In Rocky Crevices And Darkness Waterways Without Eyesight Assistance Due To Very Poor Vision Underwater Conditions And Low Light Levels Near The Bottom Of The Riverbed By Suctioning It Directly Into Its Mouth Almost Instantly When It Gets Close Enough To Be Captured Successfully Without Escaping At All And Is Then Swallowed Whole Without Chewing It First Because Of Its Teeth Structure Which Are Only Used For Holding Onto Slippery Animals Such As Fish Or Crayfish And Not For Tearing Or Chewing Food Items Into Smaller Pieces Before Swallowing Them Down Its Throat Into Its Stomach For Digestion Later On Over Several Days Time Period Depending On Water Temperature Conditions In The Stream Or River System Where It Lives Currently Located At That Moment In Time And Space On Earth Today Or Historically Speaking As Well Throughout Its Evolutionary History Since The Jurassic Period When Its Ancestors First Appeared On The Planet Millions Of Years Ago Almost Unchanged In Form Since Then According To The Fossil Record Found By Paleontologists Studying Ancient Amphibian Species Extinct Relatives Of Cryptobranchids Worldwide In Different Regions Of The Globe Such As Asia Europe And North America Too
生態系とのつながり
hunts
Virile Crayfish
Faxonius virilis
The Virile Crayfish is a primary food source for adult giant salamanders.
eaten by
North American River Otter
Lontra canadensis
North American River Otters are natural predators of the North American hellbender.
competitor
Mottled Sculpin
Cottus bairdii
Mottled Sculpins compete with juvenile giant salamanders for shelter under riverbed stones.
特徴
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別名
まだ別名はありません。
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安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Giant Salamandersを見分けるには？
Giant Salamandersを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Giant Salamandersの長さは何ですか？
30-180 cm
Giant Salamandersの体重は何ですか？
1.5-50 kg
Giant Salamandersの寿命は何ですか？
30-60 年
Giant Salamandersは何を食べますか？
They are opportunistic aquatic predators that feed primarily on river-dwelling invertebrates and small vertebrates, capturing them using rapid suction.
Giant Salamandersは通常どこに生息していますか？
Typically found in cool, clear, fast-flowing mountain streams and rivers with abundant large rocks for shelter.
Giant Salamandersはどのように狩りをしますか？
Ambush Predator Suction Feeder At Night Using Tactile Sensors To Locate Prey In Rocky Crevices And Darkness Waterways Without Eyesight Assistance Due To Very Poor Vision Underwater Conditions And Low Light Levels Near The Bottom Of The Riverbed By Suctioning It Directly Into Its Mouth Almost Instantly When It Gets Close Enough To Be Captured Successfully Without Escaping At All And Is Then Swallowed Whole Without Chewing It First Because Of Its Teeth Structure Which Are Only Used For Holding Onto Slippery Animals Such As Fish Or Crayfish And Not For Tearing Or Chewing Food Items Into Smaller Pieces Before Swallowing Them Down Its Throat Into Its Stomach For Digestion Later On Over Several Days Time Period Depending On Water Temperature Conditions In The Stream Or River System Where It Lives Currently Located At That Moment In Time And Space On Earth Today Or Historically Speaking As Well Throughout Its Evolutionary History Since The Jurassic Period When Its Ancestors First Appeared On The Planet Millions Of Years Ago Almost Unchanged In Form Since Then According To The Fossil Record Found By Paleontologists Studying Ancient Amphibian Species Extinct Relatives Of Cryptobranchids Worldwide In Different Regions Of The Globe Such As Asia Europe And North America Too
Giant Salamandersの一度の産卵数は何ですか？
150-500
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