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Interspecies Conflict/Matchups both balanced and unbalanced


Yes! I made it your not maxed out. I saw a chance and took it!

1. Dryptosaurus vs. Utahraptor
2. Gorgosaurus vs. Daspletosaurus
3. Nanotyrannus vs. Yutyrannus
4. Megalosaurus vs. Majungasaurus
5. Torvosaurus vs. Albertosaurus
6. Eocarcharia vs. Kryptops
7. Sauroniops vs. Acrocanthosaurus
8. Liliensternus vs. Monolophosaurus
9. Angaturama vs. Suchomimus
10. Afrovenator vs. Ceratosaurus
11. Carnotaurus vs. Deltadromeus

Unbalanced Matchups

1. Elephant Seal vs. Wild Boar
2. Elephant Seal vs. Giant Eland
3. Elephant Seal vs. Moose
4. Walrus vs. Yak
5. Walrus vs. Giraffe
6. Walrus vs. Cape Buffalo
7. Orca vs. Dunkleosteus
8. Orca vs. Titanoboa
9. Orca vs. Megalodon
10. Megatherium vs. Hippo
11. Megatherium vs. White Rhino
12. Megatherium vs. African Elephant

Odd Matchups huh. I eagerly await your response!

Hello Max.

1. Dryptosaurus vs Utahraptor: Dryptosaurus weighed approximately 2-3 times as much as Utahraptor.  Utahraptor was agile & well-armed (jaws, grabbing claws, kicking/slashing claws), but would have been dispatched by a well-placed bite from the larger theropod.  Edge to Dryptosaurus.

2. Gorgosaurus vs Daspletosaurus: These 2 theropods were close to the same weight, but Daspletosaurus was a bit larger.  It also had a long skull with a powerfully built lower jaw (and spaced-out teeth).  Gorgosaurus was thought to be the same as Albertosaurus (they are the same size) until differences in their skulls proved otherwise.  Edge to Daspletosaurus.

3. Nanotyrannus vs Yutyrannus: Yutyrannus had a decent size advantage over Nanotyrannus (which may have been a juvenile Tyrannosaurus and not a separate species), and had similar-enough assets for size to be the winning factor.  Yutyrannus wins.

4. Megalosaurus vs Majungasaurus: Majungasaurus was probably a bit lighter than Megalosaurus (by most accounts).  Both theropods were powerful predators with sharp teeth, but the better jaws belonged to Megalosaurus.  Edge to Megalosaurus.

5. Torvosaurus vs Albertosaurus: Estimates range wide for Torvosaurus (the ones found in Europe were larger than the ones found in North America), and it was probably a bit larger than Albertosaurus.  Torvosaurus was similar to Allosaurus in build.  Albertosaurus was built for speed (to chase prey items).  Edge to Torvosaurus.

6. Eocarcharia vs Kryptops: These 2 theropods were similar in size (Kryptops may have been a little heavier), but the long skull & more formidable teeth of Eocarcharia likely gives it the edge.  Edge to Eocarcharia.

7. Sauroniops vs Acrocanthosaurus: Sauroniops had an impressive set of jaws, but it's giving up too much weight to Acrocanthosaurus.  Acrocanthosaurus wins.

8. Liliensternus vs Monolophosaurus: Monolophosaurus was much larger and more robustly built than Liliensternus.  It would prevail over the smaller dinosaur using its larger jaws.  Monolophosaurus wins.

9. Angaturama vs Suchomimus: These 2 were very similar to Spinosaurus, but Suchomimus was likely much larger (the specimen of it found in 1997 may not have been full-grown).  Its size advantage grants it the victory here.  Suchomimus wins.

10. Afrovenator vs Ceratosaurus: Afrovenator was lightly built, but probably outweighed Ceratosaurus.  Afrovenator had sharp teeth (about 2" long) and hooked claws, and was believed to predate upon the sauropod Jobaria (which reached 20 tons in weight).  Ceratosaurus had deadly jaws as well, but likely didn't have the size to consistently win here.  Edge to Afrovenator.

11. Carnotaurus vs Deltadromeus: Deltadromes was similar in build to a Ceratosaurus, but was twice as heavy as Carnotaurus.  Deltadromeus was also believed to be a speedy mover as well.  Carnotaurus had a short skull with a relatively weak lower jaw, and bony protrusions on its head.  It may have butted heads (literally) with rival males & rivals.  The larger Deltadromeus wins.

Unbalanced Matchups

1. Elephant Seal vs Wild Boar: A large elephant seal can weigh over 15 times as much as wild boar.  Elephant seals aren't very mobile on land, but can engage in fierce battles with other males by biting each other (usually driving their jaws into one another with a lot of force).  A wild boar is nimble, has tough hide, & sharp tusks, but will be in danger if it gets too close to an elephant seal.  The boar's tusks will not cause enough damage before the seal's jaws crash forcefully into the suid.  An elephant seal will bully the smaller animal into a retreat.  Elephant seal wins.

2. Elephant Seal vs Giant Eland: An elephant seal can weigh 4 times as much as a giant eland.  Elands are very strong, athletic bovids with sharp horns.  The eland will have a significant advantage in lateral quickness, but will have difficultly inflicting serious wounds on such a huge animal.  An impact from the elephant seal's lunges will be strong enough to knock the eland down, and that might be enough to send the antelope packing.  Strange battle to assess, and a stalemate might be a common outcome, but the strength & size of the elephant seal is enough to trump the speed & weaponry of the giant eland.  Edge to elephant seal.  

3. Elephant Seal vs Moose: An elephant seal can weigh 5 times as much as a moose.  The moose has wide-spreading antlers that can serve as a barrier or a bulldozer, and the "tines" on the edges can cause puncture wounds in an adversary.  The elephant seal will easily overpower a moose pushing against it, and its violent attempts to bite the cervid will likely deter it from persisting.  The moose can move around easier, but the size & strength of the seal will be too much.  Edge to elephant seal.

4. Walrus vs Yak: A walrus can weigh almost twice as much as a yak.  Walruses have extremely tough hide (which often holds up quite well to polar bear attacks), and meter-long tusks that serve as dangerous weapons when defending themselves.  Yaks have powerful bodies & long, curved horns, but are relatively docile & non-combative.  The charge of a yak will be felt by the walrus, but the horns won't easily penetrate the hide of the pinniped.  The yak won't be able to attack consistently without being in danger of a tusk thrust, but will be the more mobile animal (as long as the battle stays on land).  The yak has the tools to win a long, drawn-out battle, but doesn't have the aggressiveness.  Slight edge to walrus.

5. Walrus vs Giraffe: A walrus is slightly heavier than a giraffe.  A giraffe has a very powerful kick (with a hoof wider than a dinner plate), and can injure a walrus if the head is targeted.  A walrus can't reach any vital areas of a giraffe with its tusks, and it doesn't have the mobility to avoid a kick.  Giraffes are usually mild-mannered, and one would not attack a walrus in a chance encounter.  A more likely result (realistically) would be the walrus intimidating the giraffe into a retreat.  However, if they were to rumble, the giraffe would be better equipped to prevail (assuming the fight stays on land).  Edge to giraffe.

6. Walrus vs Cape Buffalo: A walrus can weigh 2 1/2 times as much as a Cape buffalo.  Cape buffalo are aggressive, ill-tempered, and unpredictable.  They are battle-tested (dealing with lions, hyenas, crocodiles, etc.) and well-armed (sharp hooves, thick/sharp horns).  A Cape buffalo will have the mobility to ram into the walrus (perhaps several times) before the walrus can effective defend itself with a decent tusk thrust, but the thick hide will be very hard to penetrate.  The walrus' blubber underneath the tough hide is very thick as well, and will cushion the animal from many of the buffalo's charges.  The horns won't have as much effect on the walrus as they would a lion or hyena, and the buffalo's smaller size will keep it from generating enough power to seriously injure the pinniped.  A stalemate may result, but the walrus has a slight edge overall.

7. Orca vs Dunkleosteus: The orca will weigh anywhere from 50% to twice as much as Dunkleosteus (but they are about the same length).  Dunkleosteus (giant armored fish) was covered in armored plating on the anterior portion of its body, and had incredibly strong jaws that could crush anything that got between them.  Orcas are intelligent mammals with pointed teeth in the top & bottom of their jaws, and usually hunt (and strategize) in a pack.  A bite from Dunkleosteus would be devastating to an orca, but the killer whale is a faster, more maneuverable animal.  Dunkleosteus would not be fast enough (on every occasion) to land a good bite on the orca or prevent it from attacking the unprotected posterior portion of its body.  Edge to orca.

8. Orca vs Titanoboa: The orca will weigh approximately 5 or 6 times more than Titanoboa.  Constrictors typically have the power to suffocate animals weighing twice their own weight, and the orca will simply be too large for Titanoboa to overcome.  The orca will have an edge in maneuverability, and can injure the snake quickly with its massive bite.  Orca wins.

9. Orca vs Megalodon: Megalodon weighed about as much as 7 orcas, and was about 2/3 longer.  Megalodon wasn't quite as maneuverable as an orca, but was still capable of quick (and perhaps unpredictable) movements.  It would take several bites for an orca to adversely affect Megalodon, but the giant shark could put the mammal is serious peril with a single bite of its enormous jaws (filled with razor-sharp teeth).  Megalodon wins.

10. Megatherium vs Hippo: Megatherium, when standing, is over 4 times as tall as the shoulder height of a hippopotamus and can weigh almost twice as much as a large male.  Hippos can be very aggressive, and are very territorial when near the river's edge.  They have huge jaws that open over a meter wide, and are armed with long canines & incisors to bite, slash, & stab with.  Hippos aren't built to move about on land for extended periods of time (rotund bodies/comparatively small legs), but are capable of quick bursts of speed.  As dangerous as a hippopotamus can be, it will have a hard time penetrating Megatherium's tough hide well enough to cause serious injury without having enough time to mount repeated assaults.  Megatherium's swiping claws won't easily breach the thick (15cm) hide of the hippo, but repeated blows to the smaller animal's body (especially to the head) will take their toll.  The Megatherium is better protected from the hippo's offense than the hippo is protected from Megatherium's offense.  The hippo would have a better chance if the weights were closer, but here the giant sloth has too much size.  Megatherium wins.

11. Megatherium vs White Rhino: Megatherium will weigh close to double the white rhino's weight.  Megatherium, when standing upright, was over 3 times as tall as the white rhino.  Megatherium's hide had a protective layer (made of small pieces of bone) underneath, and its forelimbs were armed with claws (to swipe with).  The white rhino (which typically reaches 2 1/2 tons) has tough hide of its own, and is built like a tank.  Its long frontal horn might not penetrate the bony armor of Megatherium, but the impact might cause internal injuries to the giant sloth (especially since it won't have the mobility to get out of the way).  A rhino would win at parity (and a huge 4-ton white rhino would make it extremely close), but here it's giving up too much size & weight.  Edge to Megatherium.

12. Megatherium vs African Elephant: An African elephant can weigh over 20% more than Megatherium.  Megatherium, when standing, was about 80% taller than an elephant.  The swipes of Megatherium could injure an elephant, but a charge by an elephant can be strong enough to injure Megatherium (despite the armored hide) with the concussive force applied.  Megatherium's limited mobility would make it hard for the giant sloth to avoid the elephant's charges, but its powerful paw swipes would give it a chance to prevail on occasion.  Edge to African elephant.

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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