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Complete Guide to Antarctic Animals: Introduction to 25 Typical Antarctic Species and Their Characteristics

Complete Guide to Antarctic Animals: Introduction to 25 Typical Antarctic Species and Their Characteristics

2026-01-19 14:44:05 · · #1

Antarctica, located at the southernmost point of the Earth, covers an area of ​​approximately 14 million square kilometers and is the coldest and most isolated continent on Earth. Despite its extreme conditions, this snow-covered continent has nurtured a variety of unique and mysterious life forms , forming a marvelous ecosystem.

This article will introduce you to 25 representative Antarctic animals, covering their lifestyle characteristics, feeding habits, and current status. If you love the polar animal world, please continue reading.

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1. King Penguin (Aptenodytes patagonicus)

  • Physical characteristics : Black back, white belly, with orange-yellow patches on the neck and beak. It is the second largest penguin in the world, after the emperor penguin.

  • Lifespan and Habits : They can live up to 25 years in the wild, and often live in groups of up to 200,000, especially concentrated on South Georgia Island.

  • Diving ability : It can dive to depths of over 100 meters and stay submerged for extended periods to hunt.

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2. Antarctic Weddell Seal (Leptonychotes weddellii)

  • Appearance : The body is silvery-gray with brown spots, and the cubs have more spots.

  • Food ranges from small crustaceans to cephalopods.

  • Diving capabilities : Can dive continuously for up to 80 minutes at a depth of 600 meters, due to its higher red blood cell count and blood volume.

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3. Seal (Hydrurga leptonyx)

  • Personality and Appearance : One of the most aggressive predatory mammals in Antarctica, it is solitary in nature, with a gray-black back and a lighter-colored belly.

  • Diet : It not only preys on fish and squid, but also hunts penguins.

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4. Antarctic krill (Euphausia superba)

  • One of the smallest Antarctic animals , it is translucent with pink and yellow hues.

  • Ecological status : They belong to the zooplankton family and are an important food source for whales, penguins, fish, and other species.

  • Lifespan : Up to 5 years, with more than 85 species of krill recorded worldwide.

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5. Adelie penguin (Pygoscelis adeliae)

  • Appearance : Black back, white belly, facial feathers around the beak.

  • Speed ​​and lifespan : Running speed can reach 75 km/h, and lifespan is generally 11 to 20 years.

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6. Giant Skuas (Stercorarius skua)

  • It resembles a black seagull , with a large body and strong wings.

  • Behavior : Extremely aggressive, often stealing food from other seabirds, and a typical scavenger and predator in the Antarctic region.

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7. Emperor Penguin (Aptenodytes forsteri)

  • The largest penguin species.

  • Appearance : Black back and head, yellow ring around the neck, white abdomen.

  • Diving capability : Can dive to 550 meters and stay there for more than 20 minutes.

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8. Antarctic Cormorant (Leucocarbo bransfieldensis)

  • Characteristics : It is a species endemic to Antarctica and is named "Blue-eyed Cormorant" because of its blue eyes .

  • Size : 70-80 cm in length, weighing about 3.5 kg.

  • Special characteristics : The feathers are not completely waterproof, making it easier for the fish to dive after getting wet.

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9. Blue Whale (Balaenoptera musculus)

  • The world's largest animal , the adult blue whale measures 24 to 27 meters in length and can weigh up to 150 tons, with some records exceeding 30 meters and 170 tons.

  • Appearance : Slender body, bluish-gray skin.

  • Ecological role : They are filter-feeding cetaceans that feed on Antarctic krill and are often found in Antarctic waters.

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10. Antarctic petrel (Thalassoica antarctica)

  • Appearance : Small bird with a dark brown head that gradually turns white on the chest and abdomen.

  • Diet : They feed on krill, fish, and squid, and are typical mid-level birds in the Antarctic food chain.

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Other Antarctic animal species (brief list)

In addition to the species mentioned above, Antarctica is home to many more fascinating animal species, including:

  • The penguin with a chin ( Pygoscelis antarctica )

  • Yellow-browed penguin ( Eudyptes crestatus )

  • Magellanic penguin ( Spheniscus magellanicus )

  • Wandering Albatross ( Diomedea exulans )

  • Amsterdam Albatross ( Diomedea amsterdamensis )

  • Tristan Albatross ( Diomedea dabbenena )

  • Daption capense

  • Giant petrel ( Macronectes giganteus )

  • Antarctic pigeon ( Chionis alba )

  • Southern elephant seal ( Mirounga leonina )

  • Crab-eating seal ( Lobodon carcinophagus )

  • Common baleen whale ( Balaenoptera physalus )

  • Humpback whale ( Metroptera novaeangliae )

  • Southern right whale ( Eubalaena australis )

  • Dark-colored dolphin ( Lagenorhynchus obscurus )

You can read more: "What animals live in the North and South Poles?"

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Antarctic endangered animals

Despite its remoteness from human activity centers, Antarctica faces severe challenges from climate change. Melting Antarctic ice sheets are causing habitat loss, directly threatening animal survival . The following are some of the endangered Antarctic species:

  • Southern right whale ( Eubalaena australis )

  • Blue whale ( Balaenoptera musculus )

  • Magellanic penguin ( Spheniscus magellanicus )

  • Amsterdam Albatross ( Diomedea amsterdamensis )

  • Tristan Albatross ( Diomedea dabbenena )

  • Antarctic krill ( Euphausia superba )

  • Crab-eating seal ( Lobodon carcinophagus )


The actual number of Antarctic species threatened is far greater than this, and climate change has a systemic impact on the entire polar ecosystem.


bibliography

Greenpeace. 10 surprising facts about the unknown krill in Antarctica: https://en.greenpeace.org/news/10-surprising-facts-about-antarctica-krill/

OceanWide Expeditions. Wang Penguin: https://oceanwide-expeditions.com/en/featured/wildlife/pinguino-rey

Very interesting. 10 things you didn't know about Antarctica: https://www.muyinteresante.es/science/article/ten-things-that-you-didn't-know-about-antarctica

National Geographic. Blue Whale: https://www.nationalgeographic.es/animals/ballena-azul

SEO BirdLife. Great Skua: https://www.seo.org/ave/pagalo-grande/


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