Are u asking for an already existing monster or something made up?

A terrible creature that lives in the depths of the ocean, talked about only in whispers by sailors and longshoremen. Horrifying enough to make the saltiest of tars give up the sea and never set foot off dry land again. You mention it to someone who’s seen it, and you can tell by the way their hands shake, their face goes pale, and they immediately try to change the subject or stutter over an excuse to leave. The living witnesses, they say, have it worse than them that got taken by one. Rumors of a terrible sea creature got started when dolphins and sea otters washed ashore in a terrible gory state. Their bodies emancipated, the fur of the otters turned pale, but the worst was the faces. Gaping holes where the eyes used to be, and their mouths wide open as if screaming in terror. There’s a rumor that one shoreman got curious and brave enough to slice open a sea otter what was afflicted, and inside were thousands of squirming slugs that hissed when exposed to the air. They spilt out on the sand and burned anyone who touched em. Medusazoa Hibrivampus Vampire slug A Jelly fish/leech monster hybrid that starts life as a small slug that attaches itself to any sea creature it can, and grows while sucking the blood of its host. As it grows, it forms a crystalline shell around itself as it excretes it’s waste. When it’s first phase of life is over, and it’s shell is complete, it detached and floats to the surface. It attaches to other surfaces in the same way barnacles do, and in this form looks like a large, pure black barnacle. Over a very long period of time, it excretes an acid that contains neurotoxins, absorbing the living matter of other barnacles and creatures, growing in size. If it attaches to a large living host, such as a whale, it causes sores and acid burns wherever it touches. The other barnacles and small life forms that come on contact with it are absorbed and become part of it’s mass, and it can grow to incredible sizes. It will likely appear as a mass of barnacles and sea slugs when attaches to the hull of a ship or larger sea creature. When it reaches about 2 cubic feet in mass, it develops several mouths with tentacles that can protrude from them, which are bioluminescent. When hungry, it senses brain waves and opens its mouths to extend its tentacles, using them for underwater propulsion and maneuvering. It normally hangs in the water, floating below the surface, as a black blob of lumpy jelly. When it opens it’s mouths to extend its tentacles, it is surprisingly fast and agile. It attaches itself to a mammal, or large fish, and as it’s tentacles grasp its prey, the prey is caused great pain as it becomes paralyzed. The vampire slug maneuvers its way to the head of the victim, pushing its tentacles into the preys mouth and eyes, as it envelops the head in its mouth. The tentacles absorb the soft tissue and fluids of the prey, and the tentacles start to blister and pop from the acidic chemical reaction. The small pieces of tentacles are left inside the prey to gestate and become baby vampire slugs. These monsters can grow very large over time, and are attracted to the Brian waves of creatures, which causes them to target ships when they can. Human sailors having high brain function, and in great number attract the beasts. They attach to a ships hull, and slowly scale their way to the deck. Sailors who touch the creature are caused great pain and go into seizures from the neurotoxicity of its skin. The tentacles will pull sailors into its mouths as it slides across the deck, returning to the ocean once all its mouths are full. Witnesses will be horrified as a giant black slug with multiple mouths, each mouth dragging a sailor by its head while the sailors body twitches and convulses. Cutting weapons and bullets are useless to injure it, with fire being the only known source of damage to the monster. Even then, the fire causes the monster to retract, and the skin will burn releasing an acrid smoke that when breathed in, has the same neurotoxicity of the tentacles touch. Because humans have high brain function and travel in larger groups along the surface, they are highly sought after meals for any Vampire leech that has had a taste of a human crew.

The -blam!-in goat sucker

I’ve always thought satyrs were super weird. Not Mr Tumnus kind, but like the more goat looking satyrs

[quote]1. They have to resemble/be based on an animal 2. They have to either drink human blood, or eat humans[/quote] got it [spoiler]lawyers[/spoiler]

me

Siren, Hydra, Cthulu, Cyclops

My source: https://www.quora.com/What-mythical-creatures-drink-blood -stole it and copy pasted. [spoiler][quote]- Vampires, of course (including Dhampirs). - Chupacabra, which drinks goat blood. - Baobhan Sith, a fairy in Scottish lore that drinks human blood, like a cross between vampires and succubi. - Rokurokubi, a kind of Japanese yokai. There are two kinds, one whose neck stretches and one whose head comes off an flies around. Only the latter drinks blood, I believe. - Lamashtu, a Mesopotamian goddess/demoness that drank the blood of children (among other offenses). - Jubokko, another Japanese yokai: a tree that comes about by absorbing the blood from battle fields. It drinks the blood of passersby. Edit: I looked up some more. - Yara-ma-yha-who, a Koori (Australian) myth. It has no teeth, but sucks the blood from octopus-like suction cups on its fingers and toes. - The Lobishomen, from Brasil looks like a hunchbacked monkey with yellow skin, black teeth, and a beard. Its female victims become nymphomaniacs. - Chiang Shih, a more colorful Chinese vampire which draws its power from the moon and is created when a cat jumps over a corpse. And some "I-can't-believe-I-forgot-these": - Kappa, a turtle-like Japanese yokai whose vitality came from water saved in a concave depression ("bowl") on the top of the head. They dragged cows and horses to their watery homes and drank their blood (through the animals' anuses of course). - Lamia, a Greek monster with the upper body of a woman and the lower body of a winged serpent--another vampire-meets-succubus. - If you want a term to search by, blood drinkers are called hematophages, although "vampire" has been popularized in the West to include most hematophages, mythical or otherwise.[/quote][/spoiler]

Something form either Norse Mythology or Egyptian Mythology might be your best bet. I can’t remember all the monsters off the top of my head, but I know they’re out there

You could do a kraken (the type where it’s essentially a massive squid), but you’d need a [i]lot[/i] of water

My sister in law. She is human, and in my opinion humans are a animal species. She resembles Godzilla though, she stomps around a lot, makes a lot of noise and is generaly very scary and dangerous. I am also pretty sure she drinks my brothers blood and it would not suprise me if she eats a little piece of him each day.

moth people

Do they have to be from the real world? Or can I pull one from a fictional universe?

Kaathe and Frampt? I mean... pretty sure they were waiting for the Gods to get taken out so they could decimate the rest of humanity and arrive at the top of the stack. I guess they don't explicitly drink blood or eat humans though =/

Queztalcoatl. Giant flying feathered serpent. Hungry for human sacrifices.

Wendigo are pretty fantastic

Skinwalkers, they can take the form of pretty much anything as far as I know, but from the depictions I've seen they mostly take the form of deformed deer

The jackal children. Each one looks like a cross between jackal and a child (probably obvious.) They hunt in a pack, one cries like a child to lure a person into the pack's domain. The person gets jumped by the pack once they realize what's happening.

Strix in Greek mythology, were large owls that would eat human flesh and drink blood. From what I read I believe it was a family was turned into the Strix as punishment for cannibalism.

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Wendigo

Got it. Blood Starved Beast.

Kappas. They are demons in Japanese folklore that are depicted as turtle people and are typically used to warn children of the dangers of wandering around rivers. The kappa are well known for their enjoyment of sumo wrestling and drowning people and animals. They are omnivores that love cucumbers and eating organs out of peoples butts.

Cthulu, the Great Old One

Giant Horseshoes.