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Post by dinosauria101 on Dec 30, 2019 20:01:36 GMT 5
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Post by 6f5e4d on Dec 30, 2019 22:21:49 GMT 5
Nile crocodile seems to be the victor for this fight, being the slightly heavier animal on average.
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Post by dinosauria101 on Dec 30, 2019 22:49:25 GMT 5
Well, it's a BIT larger. Not groundbreaking however.
This is around 50/50 IMO, whoever gets a bite first wins
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Post by elosha11 on Dec 30, 2019 23:57:56 GMT 5
No way. This is a mismatch. A thresher shark is a small mouthed, small toothed shark, with an unaggressive temperament. Nile croc would destroy it. There are only 3, maybe four, shark species that can match a similarly sized Nile or SW croc. GWS, tiger, mako, and bull.
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Post by dinosauria101 on Dec 31, 2019 0:04:09 GMT 5
Ouch.
Maybe I should change this to a female croc? That might be more fair?
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Post by Ceratodromeus on Dec 31, 2019 0:12:03 GMT 5
A female nile crocodile won't get a lot bigger than 150kg in most cases.
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Post by elosha11 on Dec 31, 2019 0:18:36 GMT 5
Thresher sharks don't even have the temperament to attack an animal as big as a female croc. They stun small fish with their tails and swallow them whole. They are a beautiful and placid creature, big as they can get.
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Post by Ceratodromeus on Dec 31, 2019 0:19:56 GMT 5
No way. This is a mismatch. A thresher shark is a small mouthed, small toothed shark, with an unaggressive temperament. Nile croc would destroy it. There are only 3, maybe four, shark species that can match a similarly sized Nile or SW croc. GWS, tiger, mako, and bull. A mako would be an interesting one. Haven't heard them thrown in the ring that often |
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Post by elosha11 on Dec 31, 2019 0:25:44 GMT 5
Makos can get up to 1000 pounds and 10-12 feet long, without losing much of their native speed and agility. They are also quite aggressive and (for what it's worth) intelligent sharks, with very good eyesight and a well deserved reputation for big game hunting, (dolphins, pinnipeds, swordfish/tuna). Also their teeth get flatter and broader as they grow to full size which makes it easier to prey on large animals, despite lack of serrations.
Only one account of a mako/croc has been recorded to my knowledge. Supposedly a mako of unknown size was following a croc of unknown size which was carrying some kind of prey item in its mouth. According to the observer, the shark bit the croc several times until the croc dropped its meal and then the mako grabbed it and swam away rapidly. Not much to go on, but it's all I've got.
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Post by dinosauria101 on Dec 31, 2019 0:31:22 GMT 5
Maybe I could make mako vs Nile croc tomorrow
As for this, I'll change this to female Nile croc and see if that changes anything
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Post by sharkboy101 on Dec 31, 2019 0:51:42 GMT 5
The shark takes this 6.5/10 the female croc is still a deadly enemy.
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Post by Ceratodromeus on Jan 9, 2020 1:55:22 GMT 5
A female nile crocodile will measure around 3-3.5m in total body length and weigh ~100-150kg(Cott 1961), 150kg is pushing it; a pretty substantially sized female. If the thresher is really 3x the mass, that's an issue. The dimorphism between male and female niles is pretty extravagant. edit: The heaviest weight i've found for a female is a mean of 168.8kg for the 3.2-3.5m length class(n=11) from Graham's thesis on Lake Rudolph crocodiles, which is derived from Cott(1961), now the female sample is fairly large (n=327), so this is fairly reliable. Here is a morphometric table from Grahaam's thesis  More on the size of females from his thesis  The wikipedia page cites 250kg as a figure for the largest female niles, but this is not in Cott (1961) nor Graham's thesis; humorously it cites the website "answers" for this figure as well. I'll have to check the last citation (Pooley 1976) for this figure, but i doubt it airs in the realm of realibility, to be honest. |
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Post by dinosauria101 on Jan 9, 2020 2:36:44 GMT 5
I think that helps the shark a lot here. Let's see what elosha11 thinks |
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Post by Deleted on Jan 9, 2020 2:37:20 GMT 5
Would locality matter, since niles are pretty spread out so size would somewhat vary according to locale.
I heard SA crocs in Kruger and other parks near southern africa were pretty big, not sure if thats sceintifically backed.
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Post by Ceratodromeus on Jan 9, 2020 2:46:16 GMT 5
Some populations are probably larger than others, but not to a substantial degree; the three localities in that table yield very similar results overall. I'm trying to get access to Pooley & Gan (1976) to see what kind of morphometrics they have. I will also look into any research on morphometrics of the kruger population.
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