Weird Nature 15 Oddly Terrifying Animal Mouths That Are Upsetting To Even Look At  

Lee Emjay
44.1k votes 7.3k voters 548.2k views 15 items

List Rules Vote up the most nightmare-inducing mouths.

As film enthusiasts know, some of the greatest movie monsters of all time are based on the real-life animals walking, flying, and swimming around the planet. While there's no shortage of weird animals out there in nature, they become even weirder once you zoom in on specific body parts - like their mouths. These terrifying animal mouths might give you nightmares. The mouths of the anglerfish or payara bear an uncomfortable resemblance to the xenomorph from Alien, and the hagfish is like something straight out of an H.P. Lovecraft story.

But that's just the beginning of the terrors nature has to offer, at least as far as mandibles, tongues, and teeth go. This list just might make you second guess how cute penguins are, or your decision to adopt a pet tortoise. If you ever find yourself on land or in the water with one of these terrifying creatures, remember: don't look it straight in the mouth. You will freak out.

1 3,967 VOTES
Leatherback Sea Turtle
Leatherback Sea Turtle is listed (or ranked) 1 on the list 15 Oddly Terrifying Animal Mouths That Are Upsetting To Even Look At
Photo: Mdomingoa/Wikimedia Commons/CC BY 4.0

The mouths of leatherback sea turtles are filled with large (and odd looking) oral papillae, mostly made of cartilage. This turtle generally feeds on jellyfish, which are known to sting. The papillae help protect the turtle's mouth and throat as it swallows its prey.

3,176 791
Is this terrifying?
2 3,531 VOTES
Sea Lamprey
Sea lamprey is listed (or ranked) 2 on the list 15 Oddly Terrifying Animal Mouths That Are Upsetting To Even Look At
Photo: Wikimedia Commons/Public Domain

A sea lamprey is kind of like a deep-sea leech, but much more terrifying. Lampreys act as parasites to sharks and other large fish, attaching multiple rows of circular teeth and suckling from their prey.

2,774 757
Is this terrifying?
3 3,073 VOTES
Anglerfish is listed (or ranked) 3 on the list 15 Oddly Terrifying Animal Mouths That Are Upsetting To Even Look At
Photo: Wikimedia Commons/Public Domain

Anglerfish live very deep in the ocean. They have what is essentially a "fishing rod" attached to their foreheads, which they use to lure in prey before they chomp down their enormous, terrifying jaws on a hypnotized victim.

2,397 676
Is this terrifying?
see more on Anglerfish
4 3,338 VOTES
Payara
Payara is listed (or ranked) 4 on the list 15 Oddly Terrifying Animal Mouths That Are Upsetting To Even Look At
Photo: Przemek Pietrak/Wikimedia Commons/CC BY 3.0

The payara, often referred to as a "vampire fish," is native to the Amazon. It has two large fangs that stick out from its lower jaw and can reach six inches in length. As you might guess, payaras are carnivorous fish, and use their fangs to hunt smaller fish.

2,568 770
Is this terrifying?