Meet ‘Baseodiscus the Eldest,’ a record-setting ribbon worm more than 27 years old

Ribbon worms can grow to enormous lengths, and one named Baseodiscus the Eldest is showing how little we know about them—including how long they live

SINSIN
Jan 19, 2026 - 19:00
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Meet ‘Baseodiscus the Eldest,’ a record-setting ribbon worm more than 27 years old

Ribbon worms can grow to enormous lengths, and one named Baseodiscus the Eldest is showing how little we know about them—including how long they live

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