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Docktober: Where the Sea Slugs Are Hiding
Organizer Luan Roberts says she has seen a ten-millimeter hammerhead doto only a handful of times in over five years of dock watching; bring a flashlight.
Watch it as it aired: Dr. Nina Byte and Hank Ledger on this story, from BBN After Hours at 3:18 AM ET. Cartoon anchors, real headline: the facts are The New York Times's, the jokes are ours.

At a glance
- First reported by The New York Times: “It’s Docktober. Do You Know Where the Sea Slugs Are?”, with reporting from Vashon Beachcomber and Vashon Nature Center.
- Covered on BBN on Tuesday, October 27, 2026, at 3:18 AM ET on BBN After Hours, by Dr. Nina Byte and Hank Ledger.
The real story
The reporting behind this segment. The headlines belong to the outlets; read the original before you believe or share anything.
- The New York TimesIt’s Docktober. Do You Know Where the Sea Slugs Are?
- Vashon BeachcomberDNA sheds light on Quartermaster’s sea slug mystery October 13, 2026 · facts used on air
- Vashon Nature CenterA Quartermaster sea slug mystery (mostly) solved facts used on air
What BBN said about it

Hank Ledger · Lead AnchorThe New York Times says floating docks often have colorful sea creatures just below, so people lean over the edge to look for sea slugs.

Hank Ledger · Lead AnchorLuan Roberts organized the first Docktober in twenty twenty-one, and this year's first meetup has now happened.

Dr. Nina Byte · Tech & Science CorrespondentDoes this affect me? Because I would like to see one.

Hank Ledger · Lead AnchorThe hammerhead doto is about ten millimeters long.

Hank Ledger · Lead AnchorRoberts has watched docks in Washington for over five years, and she says she can count on one hand how many times she's seen one.

Dr. Nina Byte · Tech & Science CorrespondentA hand. That's fewer sightings than I've had of my own keys.

Hank Ledger · Lead AnchorAt one marina on Vashon Island, she says repeated sightings point to a stable population. She calls that quite unusual.

Dr. Nina Byte · Tech & Science CorrespondentAnd what happens next? Do I bring a flashlight?

Hank Ledger · Lead AnchorNobody has said. Thirty-five species on Vashon, according to iNaturalist, and this is the one people lie down for.

Hank Ledger · Lead AnchorFive years, one hand, and ten millimeters. And they still lie down on the dock.
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All videos →From the archive: everything BBN aired on Tuesday, October 27, 2026 · the U.S. archive · all months


Photo: Yatrik Sheth · CC BY 2.0 · Wikimedia Commons
Photo: Pjt56 · CC BY 4.0 · Wikimedia Commons
Photo: Federal Bureau of Investigation · Public domain · Wikimedia Commons · altered by BBN

