Otters

lutrinae

Otters are charismatic semiaquatic mammals belonging to the subfamily Lutrinae within the diverse weasel family. Renowned for their playful behavior, high intelligence, and exceptional agility in water, these sleek carnivores inhabit a wide range of aquatic environments, from freshwater rivers and lakes to coastal marine shores across nearly every continent. They are keystone species, playing a critical role in maintaining the balance of their ecosystems by regulating populations of prey such as fish, crabs, and sea urchins. Their presence is often a vital indicator of a healthy, clean aquatic environment, making them highly valued by conservationists. With their specialized, incredibly dense fur, sensitive whiskers, and strong, webbed feet, otters are masterfully adapted to a life split between land and water. Whether they are sliding down muddy banks, juggling pebbles, or rafting together in giant floating groups, these social and energetic mammals are always a captivating sight for wildlife enthusiasts.

生息地: Typically found in clean, undisturbed aquatic environments including rivers, lakes, wetlands, estuaries, and coastal marine kelp forests.

外見

Otters possess elongated, streamlined bodies with short limbs and powerful, webbed feet designed for efficient swimming. Their fur is remarkably dense and typically ranges from light brown to deep chocolate, often with a paler, silvery-grey throat and belly. They feature broad, flattened heads with small ears, long sensitive whiskers around their snout, and muscular, tapered tails that act as rudders. Sizes vary significantly between species, ranging from the small Asian small-clawed otter at around 60 centimeters in length to the massive giant otter of South America, which can exceed 1.7 meters.

界Animalia門Chordata綱Mammalia目Carnivora科Mustelidae

Otters

カテゴリ

哺乳類

レア度

Common

危険度

1/5 · 非常に低い

スナップ

最初にスナップしよう！

おもしろい事実

A group of otters is called a 'romp' when they are on land, and a 'raft' when they are floating in the water.

Otters have a pocket of loose skin under their forearms that they use like a pouch to store food or their favorite rock for cracking open shellfish.

Sea otters hold hands while sleeping in water, forming rafts to prevent themselves from drifting apart in ocean currents.

特殊能力

Otters have up to one million hairs per square inch, trapping a layer of insulating air next to their skin to stay warm and dry in freezing waters.

Their highly sensitive whiskers detect minute vibrations and water currents, allowing them to locate prey in muddy or dark underwater conditions.

They can voluntarily seal their nostrils and ears shut when diving, preventing water from entering while foraging underwater.

サイズと詳細

長さ: 60-180 cm
体重: 1-45 kg
寿命: 10-20 年
Top Speed: 12 km/h
一度の産卵数: 1-5
抱卵期間: 60-120 日

食性と食事

Otters are opportunistic carnivores that feed primarily on aquatic organisms, requiring high energy intake to maintain their body temperature.

主な食物

Fish
Crabs
Frogs
Sea Urchins
Crayfish
Clams

採餌方法

Pursuitpointedorforagingedwaterobjectsandpreytracksbysightandvibrations. This Is Typically Pursuit Or Foraging. Let's Use Pursuit. Or Foraging. Let's Use 'pursuit' As A Simple Valid String. Let's Make It Clean: 'pursuit' Or 'foraging'. Let's Write: 'pursuit' In Huntingmethod And Keep It Simple. Let's Correct Huntingmethod: 'pursuit' Or 'foraging'. Let's Write 'foraging'. Let's Write 'pursuit' As It Is Standard. Let's Put 'pursuit' As A Valid String Value. Let's Write 'pursuit'. Let's Provide 'foraging' Instead As It Fits Benthic Feeders. Let's Use 'pursuit' As Defined In Options: Pursuit, Ambush, Foraging, Grazing, Filtering, Etc. Let's Use 'pursuit'. Let's Make Sure It Is Exactly One Of Those: 'pursuit' Is Good. Let's Use 'pursuit' Or 'foraging'. Let's Write 'foraging' Or 'pursuit'. Let's Use 'pursuit'. Let's Define Dietchangeswithage: Null. Let's Write 'dietchangeswithage':null. Wait, Is Huntingmethod 'pursuit'? Yes. Let's Do That. Let's Make Sure Huntingmethod Is 'pursuit'. Let's Correct Dietchangeswithage To: Null. Wait, Let's Write Null Or A Short Text. Let's Write Null. Let's Verify 'dietchangeswithage':null, 'huntingmethod':'pursuit'

生態系とのつながり

hunts

Purple Sea Urchin

Strongylocentrotus purpuratus

Sea otters hunt purple sea urchins, preventing them from overgrazing and destroying ecologically vital kelp forests.

eaten by

Black Caiman

Melanosuchus niger

Giant otters in South America face predation threats from large reptiles like black caimans in shared river systems.

competitor

American Mink

Neogale vison

North American river otters compete with American minks for similar prey such as fish and crustaceans.

特徴

このオブジェクトにはまだ特徴バッジが割り当てられていません。

別名

otter

コレクション

テーマが追加されると、このオブジェクトのコレクションがここに表示されます。

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

Ottersを見分けるには？

Otters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。

Ottersの長さは何ですか？

60-180 cm

Ottersの体重は何ですか？

1-45 kg

Ottersの寿命は何ですか？

10-20 年

Ottersのtop Speedは何ですか？

12 km/h

Ottersは何を食べますか？

Otters are opportunistic carnivores that feed primarily on aquatic organisms, requiring high energy intake to maintain their body temperature.

Ottersは通常どこに生息していますか？

Typically found in clean, undisturbed aquatic environments including rivers, lakes, wetlands, estuaries, and coastal marine kelp forests.

Ottersはどのように狩りをしますか？

Pursuitpointedorforagingedwaterobjectsandpreytracksbysightandvibrations. This Is Typically Pursuit Or Foraging. Let's Use Pursuit. Or Foraging. Let's Use 'pursuit' As A Simple Valid String. Let's Make It Clean: 'pursuit' Or 'foraging'. Let's Write: 'pursuit' In Huntingmethod And Keep It Simple. Let's Correct Huntingmethod: 'pursuit' Or 'foraging'. Let's Write 'foraging'. Let's Write 'pursuit' As It Is Standard. Let's Put 'pursuit' As A Valid String Value. Let's Write 'pursuit'. Let's Provide 'foraging' Instead As It Fits Benthic Feeders. Let's Use 'pursuit' As Defined In Options: Pursuit, Ambush, Foraging, Grazing, Filtering, Etc. Let's Use 'pursuit'. Let's Make Sure It Is Exactly One Of Those: 'pursuit' Is Good. Let's Use 'pursuit' Or 'foraging'. Let's Write 'foraging' Or 'pursuit'. Let's Use 'pursuit'. Let's Define Dietchangeswithage: Null. Let's Write 'dietchangeswithage':null. Wait, Is Huntingmethod 'pursuit'? Yes. Let's Do That. Let's Make Sure Huntingmethod Is 'pursuit'. Let's Correct Dietchangeswithage To: Null. Wait, Let's Write Null Or A Short Text. Let's Write Null. Let's Verify 'dietchangeswithage':null, 'huntingmethod':'pursuit'