Mammals diurnal

Crabeater Seal

Lobodon carcinophaga

The ultimate survivor of the frozen south, the Crabeater Seal is a master of the Antarctic pack ice. With specialized teeth designed to sieve krill and a coat that shines like silver, they represent the sheer abundance of life in the coldest place on Earth.

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Quick Identification

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Size

2.1–2.6 meters (7–8.5 feet) in length; 200–400 kg (440–880 lbs)

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Colors

Creamy white to silvery-grey, darkening to chocolate brown on the back before molting; often covered in long, parallel scars.

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Key Features

Elaborate multi-lobed, sieve-like teeth
Slender, streamlined 'dog-like' snout
Extensive scarring on the torso from Leopard Seal attacks
Pale, uniform coat color that fades with age

When You’ll See Them

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Activity pattern diurnal

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Peak hours 10 AM - 4 PM (for hauling out on ice)

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Season November-February (Antarctic Summer)

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Diet Almost exclusively Antarctic krill (90%+), which they filter through specialized, interlocking teeth.

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Habitat Floating Antarctic pack ice and the surrounding Southern Ocean.

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Behavior

Crabeater Seals are the most numerous seal species on Earth, yet they remain one of the most mysterious due to their remote Antarctic habitat. Unlike many other pinnipeds that aggregate in massive colonies on land, Crabeaters spend almost their entire lives on the shifting pack ice. They are remarkably agile on frozen surfaces, utilizing a unique serpentine motion—swinging their foreflippers and pelvis in a swimming-like action—that allows them to outrun a human on the ice.

Socially, they are often found in small family groups or pods, particularly during the breeding season. However, they are generally more solitary than the densely packed Elephant Seals. They are famously wary of predators; nearly 80% of adult Crabeater Seals carry deep, horizontal scars, the permanent signatures of narrow escapes from the jaws of Leopard Seals during their youth. Despite their name, they have no interaction with crabs, which are largely absent from the Antarctic shelf.

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Camera Tips

Capturing the Crabeater Seal on camera requires a specialized approach to remote monitoring in extreme environments. Because these seals live on drifting pack ice, a standard 'backyard' setup is impossible; instead, cameras must be mounted on stable ice floes or coastal rocky outcrops near known haul-out sites. To get the best shots, position your camera at a low 'seal-eye' level (about 12-18 inches off the ice) to capture their streamlined profile and unique facial structure. Using a wide-angle lens is ideal for capturing the vast, icy landscape that defines their world.

Technical endurance is the biggest challenge when filming this species. Your equipment must be rated for sub-zero temperatures, and lithium batteries are a requirement as standard alkaline batteries will fail instantly in the Antarctic cold. Consider using a solar-powered external battery pack if you have a clear line of sight to the sun, which remains above the horizon for 24 hours during the peak summer season. To prevent lens fogging or icing, ensure the camera housing is hermetically sealed with fresh desiccant packs inside to absorb any internal moisture.

While traditional bait is ineffective and environmentally prohibited in Antarctica, you can capitalize on their natural behavior by placing cameras near 'leads'—cracks in the ice where seals are likely to emerge from the water. Crabeaters are naturally curious about new objects on the ice and may approach the camera to investigate. Set your trigger speed to the fastest possible setting; despite their bulk, their 'galloping' movement across the ice is surprisingly quick and can easily blur a slow-shutter shot. For the most dramatic footage, aim for the 'golden hours' of the Antarctic summer, when the low sun creates long shadows and highlights the pearlescent sheen of their pale fur.

Similar Species

Species that look similar or are commonly confused with Crabeater Seal.

Leopard Seal

Much larger with a reptilian head and dark spotted coat; lacks the Crabeater's specialized krill-filtering teeth.

Weddell Seal

Has a rounder body, smaller head, and a darker, mottled grey coat; usually found on 'fast ice' attached to land rather than floating pack ice.

Ross Seal

Much smaller with very large eyes and a shorter snout; possesses a unique vocalization and a distinctive dark 'mask' around the face.

Frequently Asked Questions

Crabeater Seals are primarily diurnal. They are most easily spotted during the middle of the day when they haul themselves out onto ice floes to rest, soak up the sun, and avoid underwater predators like Orcas.

Unless your backyard is a floating ice floe in the Southern Ocean, you won't be able to attract them! They are strictly Antarctic residents and never venture into suburban or inhabited temperate areas.

Despite their name, Crabeater Seals do not eat crabs. Their diet consists almost entirely of Antarctic krill. They have evolved incredible, multi-pointed teeth that act as a sieve, allowing them to gulp seawater and strain out the tiny crustaceans.

No, Crabeater Seals are never found in suburban areas. They have a circumpolar distribution around Antarctica and are rarely seen north of the Antarctic Convergence.

Crabeater Seals are smaller, paler, and have a more 'dog-like' face. Leopard Seals are much larger, have a massive, reptilian-looking head, and are covered in dark spots. Most adult Crabeaters also have long, parallel scars on their sides from surviving Leopard Seal attacks.

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