Interspecies Conflict/Vs. Battles


What up Vs. Battles not much more to be said.

1. Megaraptor vs. Therizinosaurus
2. Majungasaurus vs. Nanotyrannus
3. Megalosaurus vs. Ceratosaurus
4. Torvosaurus vs. Mapusaurus
5. Dilophosaurus vs. Deinonychus
6. Ostrich vs. Moa
7. Ornithomimus vs. Struthiomimus
8. Elephant Bird vs. Terror Bird
9. Dimorphodon vs. Golden Eagle
10. Wolverine vs. Hyrax
11. Siberian Tiger vs. Giant Jaguar
12. Striped Hyena vs. Grey Wolf
13. Hammerhead vs. Tiger Shark
14. Mandrill vs. Orangutan
15. Pygmy Hippo vs. Tapir
16. Australopithecus vs. Neanderthal
17. Black Mamba vs. Coral Snake
18. Belcher's Sea Snake vs. Inland Taipan
19. Funnel Web Spider vs. Brazilian Wandering Spider
20. Sand Tiger vs. Sawfish
21. Bottlenose Dolphin vs. Narwhal
22. Marlin vs. Sailfish
23. Megatherium vs. Acrocanthosaurus
24. Dunkleosteus vs. Great White Shark
25. Bulldog Raspy Cricket vs. Giant Weta

I know it seems like a bit much. Just answer to the best of your ability.

Hello Max.

1. Megaraptor vs Therizinosaurus: Therizinosaurus was almost 3 times as heavy as Megaraptor.  Therizinosaurus was armed with scythe-like claws (almost 1 meter long each) on its front limbs.  These may have been used to merely intimidate adversaries, but may have been decently effective weapons against attacking theropods (although some scientists don't believe they were very combat-effective).  Therizinosaurus stood close to 6 meters in height.  Megaraptor had long claws on its forelimbs that could be used to slash at adversaries (and formidable jaws).  Megaraptor is better armed overall, but gives up a lot of size.  Edge to Therizinosaurus.

2. Majungasaurus vs Nanotyrannus: Majungasaurus weighed a bit more than Nanotyrannus.  Majungasaurus had a short, deep skull, and was likely a capable predator.  Nanotyrannus may have been a juvenile Tyrannosaurus (or even an Albertosaurus), but may have been a separate species.  Majungasaurus had enough of a size advantage to win here, but would not be favored at parity (assuming Nanotyrannus wasn't a juvenile T-rex).  Edge to Majungasaurus.

3. Megalosaurus vs Ceratosaurus: Megalosaurus weighed about 15% more than Ceratosaurus.  Megalosaurus had sharp teeth (2" long) positioned at the front of its jaws, and short (but strong) forelimbs with claws.  Ceratosaurus also had short, strong forelimbs, and had a large, deep skull with long teeth (especially in the top jaw) which made this theropod suitable for hunting large game.  I would favor Ceratosaurus at parity, but the weight advantage of Megalosaurus is important.  Edge to Megalosaurus.

4. Torvosaurus vs Mapusaurus: These 2 theropods were similar in weight by most accounts, but the weight range of each is somewhat wide.  The differences in assets & attributes aren't enough to assign one to a "better" status at equal weights, and each fight would depend on the individuals.  Probably close to 50/50.

5. Dilophosaurus vs Deinonychus: Dilophosaurus weighed about 6 times as much as Deinonychus.  Dilophosaurus was a lightly-built theropod that preyed on smaller animals, and it may have viewed Deinonychus as a potential prey item.  The Dilophosaurus depicted in "Jurassic Park" was not an accurate representation (size-wise) of an adult (and it did not spit venom).  Deinonychus was a dangerous predator with a diversified offense (decent bite, grabbing claws, kicking claws), and likely hunted in groups.  It was an agile dinosaur with good leaping ability, and would have been a formidable opponent for many animals in its weight range (and heavier).  The larger jaws of Dilophosaurus would have caused quick damage to the smaller Dinonychus, and would be enough to swing the battle in its favor on most occasions.  Dilophosaurus wins.

6. Ostrich vs Moa: These birds were somewhat similar in structure, but the moa was almost 50% taller and almost 1/3 heavier.  Moa had to deal with the aerial assaults of the Haast's eagle, but had no terrestrial predators.  Ostriches occasionally use their dangerous kicks to defend against hyenas, lions, cheetahs, and other predators (although running & hiding are more common responses).  There's no reason to think the moa couldn't kick if it needed to, and it does have a decent size advantage.  Moa wins.

7. Ornithomimus vs Struthiomimus: These dinosaurs were very similar in build (and their skeletons closely resembled the skeleton of an ostrich), but the Ornithomimus (using top estimations) was a bit larger.  Edge to Ornithomimus.  

8. Elephant Bird vs Terror Bird: Elephant birds were almost twice as heavy as Kelenken & almost 3 times as heavy as Titanis & Phorusrhacos (and somewhat taller).  However, they were probably much slower, and did not have the dangerous beak of the terror birds.  The elephant bird was probably able to deliver a strong kick, but the more diversified offense (and greater speed) of the terror birds would have given it problems.  Kelenken wins; the smaller "terror birds" have a slight edge.

9. Dimorphodon vs Golden Eagle: Dimorphodon's wingspan may have slightly exceeded the golden eagle's, but the eagle is a heavier, more solidly-build creature.  Dimorphodon was a lightly-built pterosaur, and had a proportionately large skull (10" in length & robust) that resembled a puffin's skull.  Its beak contained fang-like teeth suitable for ripping apart fish.  However, the golden eagle is much more maneuverable in flight & has powerful talons to grab & impale with.  The eagle also deals with larger prey items.  Golden eagle wins.

10. Wolverine vs Hyrax: The wolverine weighs almost 4 times as much as the largest hyrax (the rock hyrax).  Hyraxes resemble large guinea pigs.  Wolverines are strong, ferocious mammals that rarely back down from a conflict.  The powerful jaws of the wolverine would make short work of a hyrax.  Wolverine wins.

11. Siberian Tiger vs Giant Jaguar: The giant jaguar was similar in weight to a modern-day lion, and the Siberian tiger is about 20% larger.  The giant jaguar was probably stronger pound-for-pound, but the strength would be close at absolute weights.  Jaguars have stocky builds & very strong jaws, but the Siberian tiger has longer limbs (and would likely win a "swipe war" with the jaguar).  Because the giant jaguar will have a more primary options on where to deliver its bite (skull/neck) than the tiger (neck), it will be a dangerous adversary.  The larger size of the Siberian tiger will help it control the positioning better, and that may be key.  Close battle, but edge to Siberian tiger.

12. Striped Hyena vs Grey Wolf: A gray wolf will typically weigh about 30% more than the striped hyena.  Striped hyenas are bold & aggressive, and can usually drive a wolf away in an actual encounter.  However, if a gray wolf was determined to fight, it would have a decent chance.  Wolves are nimble, and have strong bites, but they are better suited for confrontation when joined with other members of the pack.  Striped hyenas have strong bites as well (and it may be just as strong as the wolf's despite its smaller size).  The striped hyena would probably need to be at least 85% of the wolf's weight to give it an even contest, and it's not quite there in this scenario.  Close fight, but edge to the gray wolf.

13. Hammerhead shark vs Tiger Shark: Both of these sharks have similar attributes (jaws filled with razor-sharp teeth, tough scaly skin, aggression, etc.), but the tiger shark is typically much larger than the hammerhead shark (even the great hammerhead shark).  Tiger shark wins.

14. Mandrill vs Orangutan: An orangutan can weigh between 2 and 2 1/2 times as much as a mandrill.  Orangutans are massively strong apes with long arms spanning over 2.2 meters wide.  They are typically peaceful animals & aren't skilled combatants, but can deliver a decent bite if threatened.  The orangutan's limbs are very flexible, and it is capable of great range of motion.  Mandrills are the largest of monkeys, and have sharp upper canines as long as toothpicks.  They have good lateral movement (and are good leapers), and can create serious wounds with their bites.  The orangutan will likely sustain injuries in a fight with a mandrill, but its long arms & grabbing hands are perfect for controlling the movements & positioning of the smaller animal.  A mandrill is generally a much more formidable opponent than an orangutan for most animals (hypothetically speaking), but the physiology & size of the ape enables it to edge the monkey in this contest.  Edge to orangutan.  

15. Pygmy Hippo vs Tapir: The larger tapirs can weigh almost 50% more than the pygmy hippo.  Tapirs usually run from danger (into thick brush if it's available), but can deliver nasty bites if they are forced to fight.  They are occasionally attacked by jaguars (and depending on the tapir, other large felids), and can be a difficult prey item.  Pygmy hippos are smaller versions of their more aggressive cousins (river hippo), and are not known to fight among themselves.  They occasionally encounter leopards, and use their jaws (and canines)to defend themselves.  A tapir will have an advantage in mobility (longer, thinner legs) over the barrel-shaped pygmy hippo, and the latter will likely need a weight advantage to be favored.  Malayan & Baird's tapirs are too heavy for the pygmy hippo to defeat, the similarly-sized South American tapir has a slight edge, & the smaller mountain tapir is probably too small to be favored.

16. Australopithecus vs Neanderthal: The Neanderthal likely weighed more than Austalopithecus (approximately 30% more), but weights for both vary.  Australopithecus was shorter than the Neanderthal (about 80-90% of its height), and its brain was only 1/3 as large (and was similar in size to a chimpanzee's brain).  However, it had long powerful arms (perhaps an adaptation for climbing trees) and a solid, stout body.  Neanderthals were very stocky & muscular (due to intense physical activity), and had very strong grips (and long thumbs).  Neanderthals used tolls; Australopithecus did not.  The muscles used for throwing & striking were well developed in Neanderthals as well.  The upper body & arms were likely much stronger in Australopithecus, but the Neanderthal probably had the edge in overall combat skill (and was more intelligent).  I'd probably give the Neanderthal the edge.

17. Black Mamba vs Coral Snake: The black mamba is larger & more aggressive than the coral snake.  Coral snakes have small fangs, and sometimes need to chew to properly inject its venom.  Black mamba wins.

18. Belcher's Sea Snake vs Inland Taipan: These 2 snakes are right at the top of the list for most venomous (the inland taipan is 1st; the sea snake isn't too far behind).  The sea snake rarely ventures onto land (where its movement would be very poor), and the inland taipan typically lives away from the sea (even though, like all snakes, it can swim).  Neither snake is aggressive.  The location of the battle will likely determine the winner, as each snake is more comfortable in its own habitat.  The inland taipan is usually much larger (and very quick for its size), so it gets the nod.  Edge to inland taipan.

19. Funnel Web Spider vs Brazilian Wandering Spider: The Brazilian wandering spider & the funnel-web spider are both highly venomous (among the top for spiders).  The funnel web spider's fangs are large & can penetrate targets easily, but the Brazilian wandering spider is probably more aggressive.  Could go either way; likely depends on which spider gets the first significant bite in.  Probably close to 50/50.

20. Sand Tiger shark vs Sawfish: The sawfish has a large weight advantage over the sand tiger shark.  Sand tiger sharks are slow swimmers, and have relatively small mouths.  Sawfish are armed with a rostrum (snout) shaped like a chainsaw blade, and can use this to strike mightily from side-to-side.  Sawfish wins.

21. Bottlenose Dolphin vs Narwhal: The narwhal weighs over 3 times as much as a bottlenose dolphin.  The narwhals tusk (up to 3 meters long) is actually a long tooth, and it isn't suitable as a real weapon in combat.  The dolphin will have greater mobility, and can ram into the narwhal to force a retreat.  Bottlenose dolphin wins.

22. Marlin vs Sailfish: These fish are similar in appearance at first glance (torpedo-shaped bodies & sharp bills), but marlins are significantly heavier.  The larger marlin wins.

23. Megatherium vs Acrocanthosaurus: Megatherium weighed between 75% to 83% of Acrocanthosaurus' weight.  Megatherium had huge claws that could serve as weapons similar to the front claws of a grizzly bear or a giant anteater.  The giant sloth's skin was reinforced with small pieces of bone that served as a type of armor.  Acrocanthosaurus was similar to Allosaurus (predatory/huge jaws), but weighed over twice as much.  Megatherium would have been able to drive the theropod away in a confrontation on occasion, but its limited mobility would have made it difficult to consistently keep the carnivore in front of it.  The powerful jaws of Acrocanthosaurus would have some difficulty tearing into the tough hide of Megatherium, but they still would have been capable of inflicting serious wounds over the course of a conflict (especially to the head/neck/limb areas).  Acrocanthosaurus was also more accustomed to dealing with adversaries close to its own weight than Megatherium.  Edge to Acrocanthosaurus.

24. Dunkleosteus vs Great White Shark: Dunkleosteus (giant armored fish) weighed 60% more than a great white shark, and was 25% to 50% longer.  The anterior half of Dunkleosteus' body was covered in armor plating, and this plating formed the sharp edges of its extremely powerful jaws.  Great white sharks have one of the greatest offensive weapons in the entire animal kingdom (a huge bite with numerous razor-sharp teeth), but they typically shy from combat (and attack using ambush & retreat).  The great white shark would have the edge in mobility, but its bite would need to be used on the anterior portion of Dunkleosteus to have any effect.  The bite of the giant armored fish would cause great injury to the shark regardless of where it landed.  Dunkleosteus wins.

25. Bulldog Raspy Cricket vs Giant Weta: The giant weta can reach 4" in length.  Not sure how the rasping sound made by the bulldog raspy cricket will effect the giant weta, and the weta doesn't appear to have any major offensive abilities.  The bulldog raspy cricket does predate upon insects & spiders, so it might have the edge.  Not really sure about this one.

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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