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Geographical

Geographical

Official magazine of the Royal Geographical Society (with IBG)

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Globsters: the strange ‘beasts’ found on beaches

23 December 2025
2 minutes

A globster
A globster washed ashore. Image: Wikimedia Commons

Discover more about a mysterious, recurring ocean phenomenon that has captivated attention for decades


By Grace Gourlay

From time to time, the sea leaves something on the sand that disturbs the boundary between the natural and the imagined. A pale, fibrous mass lies tangled in seaweed, heavy with salt and decay. It has no clear shape, no visible bones, and no obvious explanation. For a brief moment, it feels as if the ocean has surrendered one of its secrets.

These remains have a name: globsters. The term was coined in 1962 by the zoologist Ivan T Sanderson after the discovery of a large, headless carcass on a Tasmanian beach. Similar discoveries have occurred across the world – in Florida, New Zealand, Chile and the Philippines – each one greeted with the same pattern of fascination and speculation. For a short while, science yields to story.

The photograph here shows perhaps the most famous of them all: the St Augustine Monster, which washed ashore in Florida in 1896. At the time, the carcass was believed to be the remains of a giant octopus, large enough to grasp ships in its arms. Only a century later did biochemical analysis reveal its true nature – not a sea monster, but a mass of collagen-rich whale tissue, reshaped by tide and decay.

That, it turns out, is the truth behind most globsters. When a whale dies, its body drifts and breaks apart. Gases expand the carcass; skin slips free; the blubber collapses into a pale, elastic matrix that resists decay. By the time it washes ashore, what remains is unrecognisable: muscle teased into fibrous strands that look, to the human eye, like hair or tentacles. Decomposition has done its work too well, creating a creature where none exists.

Discover more about the fascinating history of globsters. Video: ABC Science

DNA analysis has confirmed this pattern repeatedly. The ‘Newfoundland Blob’ of 1997 and the ‘Chilean Blob’ of 2003 were both proven to be whale remnants. Each new mystery returns to the same conclusion: that the ocean’s processes are far more inventive than any myth we attach to them.

Yet the fascination endures. The globster sits in that narrow space between knowledge and wonder – a reminder that even in an age of satellites and gene sequencing, the sea still retains its power to surprise. The human instinct, when confronted by the strange, is to narrate it. A lifeless mass becomes a leviathan; a shape without context becomes a story.

Globsters are, in the end, not monsters but by-products of the ocean’s natural chemistry. They endure because they occupy the narrow space between science and imagination: real enough to study, strange enough to doubt. Each new discovery invites the same question, and the same quiet answer – that the sea’s mysteries aren’t always what they seem, but its capacity to unsettle us remains unchanged.

Themes Briefing Oceans Phenomena

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Published in the UK since 1935, Geographical is the official magazine of the Royal Geographical Society (with IBG).

Informative, authoritative and educational, this site’s content covers a wide range of subject areas, including geography, culture, wildlife and exploration, illustrated with superb photography.

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