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Interspecies Conflict/"I Vant To Suck Your Blood!"


Hi BK, its nice to be talking to you again and as usual I have another question. My question today is this. Lets say a vampire bat was scaled up to the same size as these animals and the two did battle who would win? Here goes.

Vampire Bat vs Lion

Vampire Bat vs Bengal Tiger

Vampire Bat vs Grizzly bear

Vampire Bat vs Leopard

Vampire Bat vs Jaguar

Vampire Bat vs Gorilla

Vampire Bat vs Green Anaconda

Vampire Bat vs Cape Buffalo

Vampire Bat vs American Bison

Vampire Bat vs Giraffe

Vampire Bat vs Great White Shark

Vampire Bat vs Nile Crocodile

Vampire Bat vs White Rhino

Vampire Bat vs Hippo

Thank You

Hello Trish.  Good to hear from you.

The vampire bat usually weighs about 1 5/8 oz (about as much as a golf ball).  Vampire bats feed on the blood of mammals, and typically do this while the victims are sleeping (or otherwise unaware or unconcerned of their presence).  Their upper incisors are razor-sharp, and can easily cut into hide to induce bleeding.  A vampire bat is a strong flyer, and can move around rather well on the ground by using its forearms and back legs to propel itself.  The vampire bat won't swoop down and attack like a bird of prey will, and won't be able to use its bite effectively against an animal with superior reflexes.  The vampire bat (in a parity fight) can certainly extract enough blood to kill, but only if the victim is asleep or immobilized.  The vampire bat definitely looks scary, but it is a stealthy creature that isn't practiced at fighting (there are occasional squabbles between 2 male vampire bats).  Even though a vampire bat has surprising speed and agility on the ground, one scaled up to the size of a large land animal (like one of the ones listed here) will likely lose a lot of speed and mobility, and that must be considered here.  If the vampire bat's speed and agility remain the same in ratio to its body size after being scaled up, its chances to win these battles will dramatically increase.  It won't be fair to grant the smaller animal such a large advantage in a scaled-up fight, so I am going to be as realistic as possible when assessing what abilities the scaled-up bat will actually have if this can realistically happen.

Vampire Bat vs Lion (at parity): A vampire bat the weight of a lion will probably have a wingspan over 10ft and a body length of about 5ft.  Although the sharp-toothed vampire bat looks scary, its forte is its sneak attack and not one-on-one combat.  It will simply have no real experience in taking on a similar-sized animal of a different species, and this will be a recurring theme in all of these matchups.  The African lion is a fighter through-and-through, and most of this experience comes from battling other male lions or helping the pride to overtake a large prey item (like a buffalo).  It's unlikely that a vampire bat is built solidly enough to withstand the rigors of a violent struggle, and the ability for a lion to dish out major damage with its teeth and claws will spell doom for the flying mammal.  Even though a bite from the scaled-up vampire bat will inflict injury to a lion, the ability for the bat to implement this bite will be seriously limited once contact is made.  The lion will likely seize the bat and finish it off with a well-placed bite.  Lion wins.

Vampire Bat vs Bengal Tiger (at parity): This fight will be about the same as the bat vs lion matchup.  Bengal tigers are experts at dispatching animals larger than themselves solo, and a vampire bat with a limited offensive arsenal will be overcome quickly by the striped cat.  Even if the vampire bat is in the air when it comes close, the tiger will leap up and seize it once it comes close enough to attempt a bite.  Bengal tiger wins.

Vampire Bat vs Grizzly bear (at parity): The vampire bat here will probably have a wingspan of almost 13ft, but will be seriously outmatched in a battle with the grizzly bear.  The vampire bat's lack of combat experience, lack of comparable durability, and limited weaponry will be disastrous for it against an animal that has an abundance of these qualities.  Once contact is made, the bear will overpower and maul the vampire bat.  Grizzly bear wins.

Vampire Bat vs Leopard (at parity): This outcome will be the same as the other bat vs big cat matchups.  The leopard will be far more comfortable in this fight than the bat will, and will easily put itself in a position to land a killing bite soon after the onset of this fight.  Just about any large animal that occasionally engages in some sort of conflict will have an edge over a scaled-up vampire bat.  Leopard wins.

Vampire Bat vs Jaguar (at parity): This outcome will be the same as the other bat s big cat matchups.  The jaguar will seize the vampire bite with its powerful clawed limbs and finish it with a crushing bite (likely to the skull).  Jaguar wins.

Vampire Bat vs Gorilla (at parity): Gorillas aren't especially skilled at fighting anything other than other gorillas because they rarely encounter any hostile animals other than other gorillas.  They do have a set of attributes (great strength, powerful arms, grabbing hands, strong bites, 2" canine teeth) that make them capable of being a handful for any adversary.  The gorilla will likely intimidate the vampire bat into a hasty retreat if the encounter begins face-to-face, and any serious battle will favor the ape because its limited fighting experience will still be at a higher level than the bat's.  Gorilla wins.

Vampire Bat vs Green Anaconda (at parity): The vampire bat's best chance against the green anaconda will be on dry land, but even then its chances won't be good.  The anaconda may not choose to engage if the vampire bat is aware of its presence, but the bat won't approach if it notices the snake moving toward it.  A bite from the vampire bat might cause damage, but the mammal will put itself in serious jeopardy if it gets close enough to attempt one.  The coils of the muscular green anaconda are very powerful, and the vampire bat will not be able to free itself once the coiling process starts.  A water battle will heavily favor the snake.  Green anaconda wins.  

Vampire Bat vs Cape Buffalo (at parity): Given enough time, a vampire bat the size of a Cape buffalo can drain enough blood from it to kill it.  However, if the buffalo is aware of the vampire bat's approach, it will be able to gain the upper hand with a fierce arsenal of horns and hooves.  Cape buffalo are accustomed to fighting off dangerous predatory threats (lions, hyenas, etc.), and one will be more comfortable at combat than a vampire bat will be.  The amount of damage a Cape buffalo can dish out to the comparatively frail body of the vampire bat will exceed the amount of damage the bat will be able to inflict to the body of the bovid.  Cape buffalo wins.

Vampire Bat vs American Bison (at parity): This outcome will be the same as the bat vs buffalo matchup.  The bison's stocky frame can generate a lot of power in its charges (it likes to ram with its head), and its horns and hooves can easily injure the vampire bat at close quarters.  The vampire bat won't have the ability to overpower a similar-sized animal actively fighting against it if the bat's experience level isn't comparable.  The bison will have a better idea of what to do than the other way around.  American bison wins.

Vampire Bat vs Giraffe (at parity): The wingspan of the vampire bat will be a bit greater than the height of the giraffe.  Giraffes are typically peaceful animals that prefer to run from danger and avoid conflict.  However, when under attack, the giraffe's defenses can be lethal.  A kick form a giraffe's hoof (especially one from the rear leg) is extremely powerful and can break bones.  It's possible that the vampire bat can get into a good enough position to sink its teeth into the giraffe, but the giraffe's kicks will likely be strong enough to repel its attack.  The giraffe will likely run if it sees this giant version of a vampire bat moving toward it, but should be able to fend a persistent bat off more times than not.  The vampire bat can win if the giraffe tries to keep moving away instead of standing its ground, but many bites will likely be needed.  Edge to giraffe.

Vampire Bat vs Great White Shark (at parity): This battle can't occur in an arena that is fair to both parties, but assuming a neutral (and hypothetical) battlefield where each animal can move ideally, the shark is better equipped to win.  A 2.5t vampire bat's teeth will actually be a lot longer than the great white shark's, but the shark will have many more teeth and a much more damaging bite.  The scaly skin of the shark serves at protection from injury, and this skin will hold up to attack much better than the skin of the mammal.  Great white shark wins.  

Vampire Bat vs Nile Crocodile (at parity): The vampire bat chances on land are better than its chances in water, but it will be outmatched in either location.  The armor-like skin of the crocodile will protect it well from many of the bat's bite attempts (assuming the bat even tries to do this), and the bat will be in big trouble if the crocodile's powerful jaws clamp onto its body.  The vampire bat won't be able to make any headway, and any resistance by the reptile will send the mammal scurrying (or flying) away.  Nile crocodile wins.

Vampire Bat vs White Rhino (at parity): As sharp as the teeth of a vampire bat can be (and considering the teeth of a 2.5t bat will be several inches long), a white rhino's tough hide won't be easy to penetrate.  With the powerful rhino actively resisting, the vampire bat won't be able to get into position to sink its teeth into the mammal.  White rhinos are immensely strong herbivores with dangerous nose horns (perhaps the most potent weapon among large land animals), and one can easily dispatch an equal-sized vampire bat that isn't nearly as durable as it is. White rhino wins.

Vampire Bat vs Hippo (at parity): Many of the same principles will apply here as in the bat vs rhino matchup.  The skin of the hippo isn't as hard and tough as the rhino's skin, but it is a lot thicker (in some cases 3 times as thick).  A vampire bat's teeth can sink into the hippo's hide, but this won't realistically happen unless the hippo stands still and allows the bat to do it.  A hippo can be an extremely aggressive fighter, and is armed with a huge set of jaws.  Its large canine teeth are capable of inflicting grievous wounds on an adversary, and a vampire bat's body won't hold up well to them.  Hippo wins.     

Nice title!

Best regards.

Interspecies Conflict

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Questions regarding animal conflicts within realistic or unrealistic settings are welcome; my strength lies in medium-to-large species. Small animals (including birds of prey), prehistoric animals, sea creatures, and domestic dog breeds are usually within my scope, but to a lesser degree. I can't confidently answer hypothetical questions about human vs animal, arachnids, insects, or amphibians, but I am willing to field them nonetheless.


From a young age, I have been interested in animals. Starting with the original Mutual of Omaha's Wild Kingdom and World Book Encyclopedias, I have seen many animal shows and documentaries and have read multiple books on the subject. I have a solid understanding of the physiology of many animals and interspecies conflict in general.

Associate degree in unrelated field; biology classes in college.

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