🎵When the jaws open wide and there's more jaws inside that's a Moray

😋 When you swim in the sea and an eel bites your knee that's a moray.

Swim through the grass and an eel bites your ass is the version I learned lol

I like to eat ya with my little mouth too.

The title almost makes it sound as though lots of vertebrates have a second set of jaws but they all use them for something other than restraining and transporting prey. Like, for playing harmonica or chew gum.

What about Alien?

Or intimidating Sigourney Weaver

It does specify vertebrate, we don’t know about the xenomorph skeletal system.

Actually tons of fish have them, but they use them to chew.

I mean after all this time we really should

Put your hand in a crack, and you don’t get it back that’s a moray.

When an eel bites your thigh and you bleed out and die, that's a moray.

I once watched documentary about guy feeding them sausages under water, then after many feedings, it ate his thumb

good thing they are relatively small..

Now scroll back to the beginning and sing all of these to the tune of the SpongeBob SquarePants theme song.

Everything with xenomorphs points to an exoskeleton. The rapid growth, shed skins and egg-laying especially.

Giant moray reach 3m (9.7 ft) and 70kg (154lbs) so not really small.

What? You can literally see its bones under its skin. And it has teeth.

Turns out it’s both, dubbed as a mesoskeleton:

https://avp.fandom.com/wiki/Mesoskeleton

Cool. Another mystery solved.

When a fish has a maw with a pharyngeal jaw, that a moray!

If it sulks in a reef and has two sets of teeth, that's a moray

You can hear it pop in the video. And then doctors amputated one of his toes and transplanted to his hand to replace the thumb.

No it specifies vertebrae. The vertebrae in our spines have a second set of jaws apparently.