What if a whale swallowed you? The throat, the depth, the sailor

What if a whale swallowed you? Say you’re diving, tank on your back, and a humpback scoops you up. It’s dark. What gets you first: the stomach, or running out of air? At least two people have really ended up inside a humpback’s mouth, and both came back out to talk about it.

A big mouth with a small back door

Humpbacks have no teeth. According to NOAA Fisheries, they strain krill and small fish out of huge volumes of seawater through baleen plates that work like a sieve. And there’s room: National Geographic reports a humpback’s mouth can reach around 10 feet, about 3 metres.

The problem is the back. At rest, a humpback’s throat is roughly the size of a human fist. Nicola Hodgins of the charity Whale and Dolphin Conservation told National Geographic it can stretch to about 15 inches across for a bigger meal, and no further:

15 in × 2.54 = 38.1 cm

About 38 centimetres; Divernet puts it at under 40 cm. By the sizing convention the Tire Industry Association describes, a car tyre ending in R15 sits on a rim 15 inches across. So the widest a humpback’s throat ever gets is the rim of a small car wheel. Without the tyre.

The man who counted from the inside

On 11 June 2021, Michael Packard, a 56-year-old commercial lobster diver, was working off Provincetown on Cape Cod, NPR reported. He told WBZ-TV he was about 45 feet down, roughly 13.7 metres, when he felt “this huge bump and everything went dark.”

His own estimate: “I was in his closed mouth for about 30 to 40 seconds before he rose to the surface and spit me out.” Nobody timed it; the video lets a stopwatch tick through his count in the corner. He first feared a shark, felt no teeth, and decided the whale was trying to swallow him. Afterwards: “I am very bruised up but have no broken bones.” He walked out of Cape Cod Hospital, with a limp, that afternoon.

So, your pick. Out of air? No. NPR reported he still had his scuba gear on, breathing from his tank inside the mouth. The stomach? He never got past the mouth. Hodgins put it precisely: he was most likely “engulfed as opposed to swallowed.”

Why the whale let go

Inside, it felt like being swallowed. It was the opposite. Jooke Robbins of the Center for Coastal Studies in Provincetown said the whale would have had to open its mouth and possibly use its tongue to push Packard out. Iain Kerr of Ocean Alliance was blunter: “To be clear, the whale did not want him in its mouth.” He compared it to an open-mouthed cyclist inhaling a fly. You are the fly.

Could a person squeeze through anyway? The US Army’s ANSUR II survey measured 6,068 adults across the outside of the upper arms, and only 10 of them came in narrower than 38 cm. Those are fit soldiers, not everyone. Bone to bone, though, plenty of people are slimmer: in the same survey, the median woman measures 36.5 cm between the shoulder bones. So shoulders alone don’t settle it. The throat does. Hodgins calls it scientifically impossible for a humpback to swallow a person.

Bigger cousins don’t help. Joy Reidenberg, an anatomist at the Icahn School of Medicine at Mount Sinai who dissects stranded whales, says of the fin whale, up to 26 metres long: “I can barely get my arm down the throat. There’s no way a human could be swallowed.”

The yellow kayak

On 8 February 2025, in the Strait of Magellan off Chilean Patagonia, a humpback surfaced and engulfed Adrián Simancas, yellow kayak and all, AP reported. His father, Dell, was filming from a few metres away.

“I didn’t see Adrian for about three seconds,” Dell said. “Then he suddenly shot out without the packraft, and a second later, the packraft emerged.” That’s an estimate, not a measurement. Adrián: “I thought I was dead. I thought it had eaten me, that it had swallowed me.” Both got back to shore uninjured. No humpback can finish the job, then. Is there any whale with a bigger door?

Exactly one whale, at the wrong depth

Of the 90 known whale species, National Geographic reports, only the sperm whale has a throat large enough to technically swallow a human. Divernet puts a sperm whale’s throat at up to 60 cm wide, against about 38 cm for a humpback.

It would have to be a big one. Reidenberg says it would take a full-grown bull of 18 metres or more, “bigger than most of the ones that we’re used to seeing.” NOAA Fisheries lists male sperm whales at 52 feet, about 15.8 m:

18 m − 15.8 m ≈ 2.2 m

So the whale it would take is about 2.2 metres longer than a typical adult male. Unusual. Not impossible.

The real problem is where he eats. You were at about 13.7 m. When Watwood and colleagues tagged 37 sperm whales for a 2006 study, the Atlantic whales’ deepest dives averaged 985 m.

985 m ÷ 13.7 m ≈ 72

About 72 times deeper than Packard. NOAA Fisheries says their hunting dives routinely reach 2,000 feet, about 610 m, and whale biologist Shane Gero told Science News that some go deeper than 2 kilometres. Researchers aren’t even sure they swallow prey whole, Science News reports; Gero says they come up with squid in “literal chunks hanging out of their mouths.” Rob Deaville of the Zoological Society of London told National Geographic it is physically possible, and also “a billion to one thing.”

The sailor who wasn’t on the ship

Which is odd, because there’s a famous story that it happened. In 1891, off the Falkland Islands, a sailor named James Bartley is swallowed by a sperm whale and found about 36 hours later, unconscious but alive, inside it.

In 1991, historian Edward B. Davis reported what he found in the papers of the ship named in the story, the Star of the East. It was a real barque, not a whaler, with a crew of 13 under Captain John Killam. The crew agreement lists every man aboard, even a few who signed on later. There is no James Bartley, nor anyone with a similar name, for the whole voyage or any part of it.

The captain’s wife had been aboard all along. “There is not one word of truth in the whale story,” Mrs Killam wrote. “There was never a man lost overboard while my husband was in her. The sailor has told a great sea yarn.”

Not on the menu

Scientists told Science News there is no documented case of a whale eating a person, University of Cincinnati News reported in September 2026. The two people who really went in came straight back out. A krill-strainer with a door the size of a wheel rim had no use for them.

So what were you, to that humpback? Never on the menu. Just in the way.