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Global Animal Guide
Leopard seal on Antarctic ice floe
Mammal Least Concern

Leopard Seal

Hydrurga leptonyx

Quick answer

The leopard seal is a formidable Antarctic predator with a reptilian head and spotted coat, weighing up to 450 kg and living about 26 years. It ambushes penguins at ice edges, swims at 40 km/h, and has killed humans in rare water encounters.

By the Global Animal Guide editorial team Last reviewed How we research & review

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Leopard Seal facts at a glance

Key facts about the Leopard Seal
Scientific name Hydrurga leptonyx
Diet Carnivore — penguins, seals, fish, and krill
Habitat Antarctic and sub-Antarctic pack ice and waters
Lifespan 20–26 years in the wild
Weight 200–450 kg (440–990 lb); females larger
Top speed Up to 40 km/h (25 mph) in water
Conservation status Least Concern (IUCN)
Scientific classification
Kingdom Animalia
Phylum Chordata
Class Mammalia
Order Carnivora
Family Phocidae
Genus Hydrurga

Where it lives

Antarctic pack ice and sub-Antarctic islands — circumpolar Southern Ocean with vagrant records to Australia and South America.

Native range (approximate) Found in oceans worldwide

What is a group of leopard seals called?

Group name (collective noun)

A group of Leopard Seals is called a colony.

Baby name

A baby Leopard Seal is called a pup.

Explore more animal collective nouns and baby animal names .

Distribution and habitat

Leopard Seals live in Antarctic pack ice and sub-Antarctic islands — circumpolar Southern Ocean with vagrant records to Australia and South America. Preferred habitat includes antarctic and sub-antarctic pack ice and waters. Across Antarctica, Oceania, South America, population density reflects prey availability, water access, and human disturbance. Protected areas and wildlife corridors remain essential for long-term persistence.

Physical traits and behaviour

Leopard Seals typically reach about 3.5 m in length and 450 kg in weight, with top speeds near 40 km/h. Antarctica's apex predator. Daily activity, social structure, and seasonal movements reflect pressures in their native environment.

Diet and ecological role

Leopard Seals feed on carnivore — penguins, seals, fish, and krill. Foraging shifts with season and local abundance. As mammals, they influence food webs — controlling prey, dispersing seeds, or shaping habitat through feeding and movement.

Conservation and coexistence

Listed as Least Concern on the IUCN Red List. Habitat loss, hunting, and climate change threaten many populations. Responsible ecotourism and community conservation help in parts of their range. Never approach or feed wild leopard seals.

Human interest and research

Leopard Seals feature in folklore, tourism, and scientific study worldwide. Ongoing research tracks population trends, genetics, and responses to environmental change — data that guides national protection policies.

Dig deeper into the Leopard Seal

Explore the Leopard Seal

Did you know? Leopard Seal facts

  • Leopard seals are formidable Antarctic predators with reptilian heads and spotted coats.
  • Along with killer whales — leopard seals dominate the ice edge food web.
  • Young seals filter krill; adults focus on vertebrate prey.
  • Conservation: Least Concern.

Diet & feeding

Leopard Seal feeds primarily as a penguins, seals, fish, krill. They have killed researchers — treat as dangerous in the water.

Adaptations

  • Leopard seals ambush penguins as they enter water from ice.
  • They have killed researchers — treat as dangerous in the water.

Behaviour & ecology

  • Leopard seals ambush penguins as they enter water from ice.
  • They have killed researchers — treat as dangerous in the water.

Communication

  • Leopard Seal uses scent, posture, and vocal signals to mark territory and coordinate social behaviour.
  • Communication intensity often peaks during breeding seasons and territorial disputes.

Habitat & range

Antarctic and sub-Antarctic waters

Ecological role

Leopard Seal plays a recognised ecological role in antarctic and sub-antarctic waters.

Frequently asked questions about the Leopard Seal

Where do leopard seals live?

Antarctic pack ice and sub-Antarctic islands — circumpolar Southern Ocean with vagrant records to Australia and South America.

What do leopard seals eat?

Carnivore — penguins, seals, fish, and krill.

How long do leopard seals live?

About 26 years in the wild on average.

Are leopard seals endangered?

IUCN status: Least Concern.

What is a group of leopard seals called?

A group of Leopard Seals is called a colony.

What is a baby leopard seal called?

A baby Leopard Seal is called a pup.

Sources & references

This guide is compiled and reviewed against established zoological and conservation references. Key sources for the Leopard Seal:

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