Tooth & Claw: True Stories of Animal Attacks
Tooth & Claw: True Stories of Animal Attacks

That's a Moray - Eels and the Damage They Can Do

August 17, 2026

AI Summary

5 min read

That's a Moray: Eels and the Damage They Can Do

Most divers don't think twice about moray eels. They're common reef residents, often seen poking their heads out of crevices with their mouths agape—a look that's more goofy than threatening. But as the hosts of Tooth & Claw discover, those open mouths aren't just for show, and a handful of gruesome encounters reveal what happens when divers forget that these long, slippery predators deserve real respect.

The Anatomy of a Bad Bite

Moray eels are built to hold on. Their mouths are lined with needle-like teeth that point slightly backward, making it nearly impossible for prey to pull free once bitten. But the truly unsettling feature is hidden deeper: a second set of jaws in their throat called pharyngeal jaws. Most fish can create suction when they bite, using negative pressure to hold prey in place. Morays can't do that—their slender heads work against them. Instead, when they bite down, those secondary jaws spring forward into the main mouth and latch onto the prey as a second anchor. They're the only known vertebrates with this adaptation, and it means that once a moray has you, it has two ways to keep you.

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What you'll learn

  • 1 (00:12) **Episode Intro & Banter** - The hosts introduce themselves, discuss a trip to Salem, and set up the shift to the episode's topic.
  • 2 (03:56) **Diving Dangers and the Moray's Reputation** - The hosts discuss the real dangers of diving, contrasting common fears with the overlooked threat of moray eels.
  • 3 (09:07) **Story 1: Matt Butcher and the Giant Moray "Emma"** - The first major attack story, involving a food-conditioned moray eel in Thailand that bit off a diver's thumb.
  • 4 (17:17) **Moray Eel Biology and "Pizza Pie or a Moray" Game** - A segment mixing educational facts about moray eels with a game to distinguish between facts about pizza and moray eels.
  • 5 (34:05) **Story 2: A Severe Moray Bite in Cuba** - A medical case study of a severe, unprovoked moray bite on a diver's forearm.
  • 6 (38:03) **The Pattern of Food-Conditioned Attacks** - The hosts identify a common thread in the most serious moray eel attacks.
  • 7 (40:34) **Story 3: Spencer Slate's Near-Fatal Hand Injury** - A well-known diving figure suffers a devastating hand injury from a feeding moray eel in the Florida Keys.

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Show Notes

Turns out its not just sharks that have a set of chompers that can d-eel some serious damage underwater.


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