An individual Antarctic blue whale is re-sighted at South Georgia

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An Antarctic blue whale photographed in 2019 and nicknamed Magrathea is re-sighted during a 2026 survey conducted from a passenger vessel, matched through a shared photo-identification platform with contributions from non-specialist observers. A single re-sighting carries disproportionate weight for a subspecies whose entire abundance estimate rests on a catalogue of a few hundred individuals - which is also a statement about how thin the data still is.

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Blue Whale MigrationOcean

Evidence · 1

Re-sighting of the Antarctic blue whale "Magrathea" at South Georgia

Timeline

No dated observations are stored for this object. Atlas shows what was observed and when — it does not infer a history.

Connections · 3

Antarctic Blue Whale (B. m. intermedia)concerns
South Georgiaconcerns
Photo-Identification Cataloguingconcerns

Assembled narrative · 1

An assembled narrative is available for this object.

Observed changes · 0

No public Signals are attached to this object. Signals show what changed and when it was observed — never a direction or a rank.

Actions

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/atlas?object=EVT_MAGRATHEA_RESIGHTED_2026