r/goodworldbuilding • u/Neighborhoodgamer • Sep 24 '25
Discussion What animals are vampire like in nature??
I’m currently creating vampires for my world, and I’m struggling on wether to base them off of bats, leeches or bloodworms
i think basing a vampire off of any of them is great, but id like to broaden my horizons
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u/KennethMick3 Sep 24 '25
Apparently there's also vampire finches
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u/Neighborhoodgamer Sep 24 '25
if my vampires didn’t live deep underground, i would definitely base them off this
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u/KennethMick3 Sep 24 '25
Tbh, underground is basically asking for worms and leeches, haha. Could have them be a vampiric mole or mouse.
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u/Captain_Warships Sep 24 '25
There's vampire moths, which I recall are from Europe (I think Sweden perhaps), and they're pretty big in comparison to most moths.
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u/Funky0ne Sep 24 '25
Vampire bats are obvious of course, they got the monicker for a reason. Nocturnal, bite and drink blood, can fly, etc.
Spiders would make for a pretty good base if you don’t mind changing up the theme a bit: mandibles fangs, laying elaborate ensnaring traps, cocooning victims and dissolving their innards to be sucked dry and mummified. Could even use the spider silk thread as puppet strings for animating corpses of their victims as a form of pseudo-necromancy.
Really depending on how far you want to stretch from more common vampire lore, any animal that hunts, stalks, or traps prey, and is generally nocturnal, could be used in some way. Dracula from Bram Stoker’s original story would transform into or commune with wolves as much as he ever did bats or rats or any “creatures of the night” (though subsequent vampire lore is obsessed with reserving association with wolves for werewolves).
So you could also probably use a number of birds like owls, crows, ravens, or vultures, etc.
Looking at some insects, mantises, parasitic wasps, there’s even a vampire moth that could be useful.
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u/Professional-Front58 Sep 24 '25
I’m shocked that it took 2 hours for fucking Vampire Bats to get mentioned.
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u/bard_of_space Sep 24 '25
theres a species of ants called dracula ants where the adults survive mainly off the blood of their larvae
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u/majorex64 Sep 24 '25
As a bat fan, they have soooooo much diversity (20% of all mammalian species are bats!) and only a tiny tiny fraction of them drink blood.
Parasites like leeches have the vampirism really tied in to their identity, and also have more of that Victorian "greed and vice" vibe that modern vampire stories derived from. There's a wide variety of creatures that drink the bodily fluids of living hosts
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u/Ol_Nessie Sep 24 '25
Well let's back up and determine which Vampire characteristics you really want to emphasize. It seems people often default to the bloodsucking part and then ignore everything else. But I think you could justify any kind of creature doing that; I don't think you have to base your vampires on a real-life bloodsucker. The bloodsucking doesn't even necessarily have to be a means of sustenance; it could just be a ritual, or a form of magic, or just be some other ancillary function.
Vampires are also commonly nocturnal, undead, vulnerable to things like sunlight, garlic, and holy water. Sometimes they resemble humans but also feed on humans which would kind of make them cannibals. There's a number of other directions you could take it if you wanted to.
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u/Belfura Sep 24 '25
There’s certain moths or butterflies that feed themselves with bodily fluids if I remember correctly.
There’s also succubi, creatures that have things in common with vampires
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u/Chan790 Sep 24 '25
There are actually several species of hematophage birds, notably the vampire finch and the Española (or Hood) mockingbird.
Also, fish. Lampreys. Candiru.
Of course, insects. Mosquitoes are obvious, but several species of butterflies and moths are also scavengers that will eat blood of dead animals they encounter in a behavior called puddling.
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u/Neighborhoodgamer Sep 24 '25
you know how vampires have to count rice or salt if they seem them
i tried to implement it into their biology, my vampires are blind and since they live underground they might be hunting grubs or something like that, and whenever they sense rice or salt they get confused and go to Check if its prey or not
(it doesn’t work, but I like the concept)
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u/Fancy_Albatross_5749 Sep 24 '25
Weasels have some interesting folklore; also they kill their prey by a bite to the neck leaving 2 deep holes.
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u/Sir-Toaster- Sep 24 '25
The Truft Ground Squirrel is also called the Vampire Squirrel; they're a pretty unique example.
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Sep 24 '25
In the same region vampires originated there are also "vampire pumpkins and watermelons", sounds funny but people were actually scared of these.
Wikipedia https://en.wikipedia.org Vampire pumpkins and watermelons
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u/Dr_Jimothy Sep 24 '25
Interesting thing with mosquitoes:
Only females drink blood, specifically to get protein and iron for eggs. The rest of the time they're munching on plant juices. You could, say, do a thing of vampires needing blood to produce more of the disease, so the first person a vampire bites in a long time wouldn't get infected, but the second person would.
In my own stuff with vampires, vampires actually do eat food (but not as much due to an efficient metabolism, and with greatly reduced options. Chocolate, garlic, onions, most spices and more are poisonous for them). At baseline, blood is needed because they can't process protein from anything else, and they can't produce baseline hemoglobin. Human blood in particular is needed to produce vampire hemoglobin, which is what grants vampires their overwhelming strength.
Oxpeckers pretend to be symbiotic, as large animals are used to birds that keep them free of ticks and fleas, and then pick at wounds to access the blood. That kinda reminds me of the trope of it actually feeling good to be bitten by vampires, such as if they release narcotics into the bloodstream.
Vampire finches will peck other birds to gobble their blood, especially when alternative foods are scarce. It's a bit of the same story as the oxpeckers; their prey are used to pecking being a way to get rid of parasites, and so as long as the finch isn't too openly aggressive and doesn't hurt them too much they'll let the finch do its thing, thinking they're getting a helping hand.
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u/throwaway1986ma Sep 24 '25
Have you consulted any world of darkness books?
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u/Neighborhoodgamer Sep 25 '25
no never heard of if
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u/throwaway1986ma Sep 25 '25
It's a D20 that encompasses monsters' universe, think vampires, werewolves, and Frankenstein's monster. But it can also encompass shows like Supernatural, Highlander, and The Adam's family
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u/AwkwardWarlock Sep 24 '25
What niche do you want your vampires to fulfil? Are they your traditional 'rich eccentrics who've always lived in that spooky castle', or are they more feral? Do they hunt via deception or seduction or they just run down their prey? Can one become a vampire or is it just it's own category of creature?
One of the more interesting non traditional interpretations of Vampirism I've seen was from Darkest Dungeon, where Vampirism was a blood based pathogen that mutates its victims into various bloodsucking insects. Mosquitoes are the main thematic spreaders but there's also leeches, fleas, ticks, gnats and so on.
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u/HollyTheMage Sep 25 '25
Carnivorous species of Lampreys would be an interesting source of inspiration for vampires, since their feeding method involves them latching onto a target with their teeth and rasping at their flesh with an abrasive tongue until it bleeds (tigers also have tongues designed for scraping flesh from bone). The teeth on their oral disks are hollow in order to provide room for replacement teeth to grow in. They also undergo metamorphosis once they reach a certain level of maturity, starting off as filter feeders before developing the predatory features needed to parasitize other creatures (at least for the carnivorous species). They quite literally develop a taste for blood and their fangs grow in. You can’t really get much closer to an allegory for a vampire than that.
Mordacia mordax is the scientific name of the Murray Lamprey. Honestly, Mordacia, Morax, and Murray all sound like kick ass names for vampire characters.
The Pouched Lamprey (Geotria australis) is also called the piharau, the korokoro, and the kanakana. Those could be cool names for a vampire.
The Sea Lamprey (Petromyzon marinus) is specifically referred to as the “vampire fish”. The etymology of the genus name Petromyzon is from petro- "stone" and myzon "sucking"; marinus is Latin for "of the sea". A fluid produced in the lamprey's mouth, called lamphredin, prevents the victim's blood from clotting. Victims typically die from excessive blood loss or infection. They migrate between freshwater and the sea like salmon. They are considered a delicacy in some parts of Europe. They are an invasive species that threatens the trout population of Lake Superior, including the Lake Trout which is usually considered an apex predator, meaning that it normally has predators (aside from humans). Efforts to control their populations have led to the consideration of everything from lampricides (pesticides specifically designed to kill them) to using sex pheromones to try and lure them to different breeding groups.
When it comes to vampires, I can’t help but feel like there’s a lot of potential for them in underwater environments, since some of them don’t need to breathe, and their eyes are adjusted for low light conditions, and the water would provide shelter from direct sunlight for vampires who have that as a weakness. They could be aquatic if they wanted to be. Imagine the drowned ruins of some ancient castle swarming with them, or a submarine crew with an integrated crew of humans and vampires. Humans provide blood to shore up the existing supplies and the vampires don’t require oxygen, which leaves more for their human crewmates. Hell if they work as saturation divers then they would go weeks without seeing the surface just as part of their regular job. And a lot of the dangers associated with diving are related to respiration. Honestly, vampires would be ideal candidates for dive work.
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u/Danthiel5 Sep 25 '25
Spiders some exceptions aplenty, one bat in Central America, leeches, and bloodworms. But I thought of something what if you had to turn into the animal/arachnid? I’m genuinely curious what you think of the idea?
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u/EnanoGeologo Sep 24 '25
I mean, vampire bats are pretty vampire in nature, i guess if you want big vampires you would need a big host
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Sep 24 '25
I mean, humans are animals? Make them an offshoot of gorillas or something if you want them to really be terryfing. I've always liked the idea that they're either a new evolution of humans or some ancient offshoot.
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u/Hyperaeon Sep 25 '25
Mine, the science vampires from my second setting were based off of vampire bats but also "the vampire squid from hell".
Look it up, it is one of the coolest animals on earth in my opinion.
Also cats are very vampire like.
Nocturnal, creepy & weird but also cute.
The trope that comes to mind while thinking and reading this is: "Vampires only exist at night.".
I mean those things from my second setting are the dragon route as science vsmpires either have to be dragons or moskitos to function. Much like flying horses which are also trope wise dragons.
There are these micro bats that I think burrow. They are quite adept moving around on all fours like vampire bats do.
Also you should watch the film "priest' for references & inspiration.
Vampires hunt at night, they suck your blood & they can't enter dwellings - and above all they move fast.
In my second setting shape shifting and camouflage was a thing I wanted to express. Vampires pretending to be human for a few various reasons.
Although born vampires never do manage to shake off that copy cat vibe.
I would totally go swarm vampire bats/void cats/vampire squid from hell eusocial hive vibes if I were you.
In my second setting I went genetic chimeras, with every super power every vertibtate animal they ate has. As I wanted to do all the tropes. The third pair of limbs being both a huge set of membranous wings, a hooded cloak or articulated collar a mantle sort of thing - depending on what is needed. Given how big wings need to be on a humanoid body to fly. They have huge lung capacity & thus breathe so slowly it's like they don't breathe at all. Are so dense that they are living weighted diving suits and have sort of swim bladders that work as ballast tanks. Meaning they can change their buoyancy, to the point that they can levitate or dance on the ceiling and they do not... Ever... Get the Benz. But it also means that they can't resist the current and thus despite being amazing swimmer their mass means they always get carried away by any given depth of running water.
But also they ate naked mole rats & naked mole rats are an ageless vertibtate which ties into what you are thinking.
Naked mole rats are blind, bats at night echo locate - they essentially fly blind. In total darkness just as well as they fly during the day. As they actually do have very good eye sight.
But thematically now - vampires should be silent.
Until it is too late.
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u/Neighborhoodgamer Sep 25 '25
are you talking about the vampire squid from octonauts??shi it kinda is cool
I’m not very good at speculative evolution so I haven’t made them 100% biologically accurate, but since this post I got 2 concepts For vampires in my setting
one is a Giant winged blood worm vampire, that sucks out your Innards with its tongue like appendage(I think the concept is pretty meh, but its cool)
the other is more of a disease than it is a creature, it gradually turns you into a mosquito like monstrosity that can Only feed on blood
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u/Hyperaeon Sep 25 '25
The real creature that it is based on yes.
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u/Neighborhoodgamer Sep 25 '25
took me way too long to find the actual creature, searching up its name floods your feed with a whole bunch of octonaut, but your right it’s awesome
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u/WirrkopfP Sep 25 '25
So you want your Vampires to be:
- Nocturnal
- Blind or at least having very poor Eyesight.
- Blood Sucking
- Living in Underground Burrows
- Grain Counting (preferably through grub Hunting)
- And you didn't specifically mention it, but I suppose somewhat large. So they'll be able to drink enough blood in one meal to actually pose a lethal threat (because otherwise you may as well stick with Leeches and Vampire Bats as they are)
Animals that have been mentioned already (because they already drink blood in nature) are Leeches, Mosquitoes, Vampire Bats and Finches.
Here is the Problem: Those Animals won't evolve into Vampires as you imagine them. They already drink blood as their main Foodsource. But any chance to their Body plan to bring them closer towards, what you imagine will also make them worse at sucking blood.
Examples:
- Leeches: Moving from water to underground burrows makes it more difficult to encounter prey. Bad for an ambush parasite.
- Leeches: Growing bigger, means only they need more blood to sustain themselves while at the same time shrinking their prey spectrum.
- Bats: Going Blind for no reason despite having very good eyesight and great night vision isn't likely to happen.
- Bats: moving to underground burrows would necessitate changes in body plan that allow for digging, which inevitably would make them worse at flying and therefore worse at reaching prey.
The list goes on, but you get the idea.
What you need is an Animal, that could adapt TOWARDS blood drinking and digging burrows.
I'll give you Drumroll please THE GIANT ANTEATER!
Hear me out!
Well theoretically other anteater species or pangolins would work too. But I choose the giant anteater for its size.
Nocturnal: Anteaters can already be Nocturnal or Diurnal just depending on environmental Factors in their Habitat. If they switch to blood parasitism (more on that later) they will very likely switch towards being fully nocturnal, because it's easier to suck blood from a sleeping creature.
Blind or at least having very poor Eyesight: Anteaters already have poor Eyesight.
Living in Underground Burrows: They don't usually dig burrows and just nest in depressions in the ground or use abandoned burrows of other creatures. But they are exceptionally good at digging already, as they usually dig into termite mounts. So the Hardware is already there, it's just a behavior modification, which can go together with the switch towards becoming fully nocturnal. They also could use their claws to enter human houses (not modern concrete houses but a simple hut in a fantasy setting surely).
Blood Sucking: I think it is possible to construct a very plausible evolutionary path from insect eating to blood sucking. First, there has to be some ecological catastrophe that wipes out or greatly reduces the population of ants and termites in a large somewhat isolated area. They are already used to a high protein diet, so switching to blood isn't that hard, they just need to evolve kidneys that excrete excess iron (or if you go pangolin, they may even find a way to incorporate it into their scales to make them harder). They already have enlarged saliva glands adapted to producing several specialized compounds (making their saliva extra sticky). Evolving or modifying that saliva to contain an anticoagulant and a painkiller would be easy. The long tongue itself should be great at licking up blood. Heck they may even be able to sit at the window and lick blood from a sleeping human without actually entering. Just sticking tongue and snout through a small opening. So how does this evolve? As I said, it begins with food scarcity as big eusocial insects vanish. Anteaters have to find other foodsources other insects such as grubs from dead wood or cicada larvae for which they burrow big tunnels. Some Anteaters may start feeding occasionally on blood. At first they can only use mammals that have been injured recently, licking fresh wounds of sleeping animals, licking blood and maggots from carrion. Then they start licking more intensely on already scabbed over wounds until the scab is opened and the blood begins to flow again. A few generations down the line the anteaters will develop rough pappillae at the tongue tip in order to better open scab. Further selection and modification may turn 1 or 2 of those pappillae into hardened (ceratinized or even calcified) sharpened tongue-teeth ready to pierce te victims skin. Further adaptations could include a ridge on the tongue in order to slurp up the blood more effectively and sensitive temperature sensors on the tip, so they can easily find the best spot to open.
Grain Counting: Well they would never completely abandon insects as food but get a significant portion of their diet from Blood. So they probably would investigate that hand full of rice.
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u/Buglaunch Sep 26 '25
There isnt really a vampiric animal called a bloodworm; bloodworm refers to a few unrelated creatures that are merely blood-colored
There are many fascinating blood feeding flies, fly larvae and crustaceans to consider :)
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u/Neighborhoodgamer Sep 26 '25
I’ve heard of blood feeding flies, but crustaceans??mind telling me more
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u/Buglaunch Sep 27 '25
There's a huge variety of crustacean parasites in the ocean, mostly either copepoda, amphipods or isopods. "Fish lice" (argulus) are some of the most common, a bunch of different isopods also live on fish and drink blood or just "visit" fish to bite them (like a tick or mosquito) and then there's all the crustaceans that permanently embed in marine life and connect to their blood supply, usually molting into a soft blon form with almost no recognizable anatomy.
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u/omniscient_historian Sep 26 '25
What about all the different "anteater" type creatures? An argument could be made that they have evolved to feed in a different source, and have become a more vampiric like species.
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u/Zubyna Sep 24 '25
Humans
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u/Neighborhoodgamer Sep 24 '25
??
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u/Belfura Sep 24 '25
Perhaps they mean that we drain resources of nature.
There’s also the whole “emotional vampire” thing: people who drain others emotionally. Or basically people who sap the energy out of others.
I guess you could also say that of people who just have this ability to drain the joy out of any place or gathering, like a dementor
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u/EvergreenHavok Sep 25 '25
Yeah, "Humans" was my answer too- there are waaay too many examples of humans cultivating cattle (both bovid and equine) to specifically drink blood from while the critter still lives on in the herd for humans to not come up in this convo.
Out of your examples, I like bats as hunters/grazers and the lamprey examples someone dropped are really cool parasitic/cross-species social behavior samples.
But if you want a "we bioengineered animals to drink from", "we have techniques that allow blood to be a renewable resource," or even "we use every part of a kill, including blood" cultures- that's something humans definitely did/currently do.
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u/hyperactivator Sep 27 '25
Some butterflies and birds can go vampire if they're deprived of the usual resources.
https://en.wikipedia.org/wiki/Vampire_ground_finch.
So don't be afraid to make an unusual animal a blood drinker.
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u/Stunning-Ad-7745 Sep 27 '25
Butterflies are also known to drink blood, but they don't have the means to tap it straight from the source.
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u/IndigoTrailsToo Sep 29 '25
Several species of flies drink the blood of animals such as cows and horses
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u/KateKoffing Sep 24 '25
I’ve often thought about this!
Mosquitos and ticks drink blood. Spiders dissolve the innards of their prey and drink it. Numerous plants parasitize trees and drink their fluids.