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A theory about dinosaurs, and nobody's asked Frazzled what they actually did? Damn, those paleontologists are useless.

 -Shrike- wrote:
A theory about dinosaurs, and nobody's asked Frazzled what they actually did? Damn, those paleontologists are useless.

To be fair whenever they go anywhere near his lawn they get killed... I guess that they must have run out of grad students.

Wait, those weren't sacrifices to the Great Wienie? Oops...my bad.

 KingCracker wrote:

 Ensis Ferrae wrote:
Makes ya wonder what a "turf war" between velociraptors and T-Rexes would look like

So much finger snapping and dancing

When you’re a ‘rex, you’re a 'rex all the way?

 Bullockist wrote:
That's not a T-rex . This is a T-rex


http://en.wikipedia.org/wiki/Tony_Williams_(rugby_league)

He also hunts in a pack.

I see your T-Rex, and raise you.... I dunno, something that eats T-Rex:







Also... Union > League

 Paradigm wrote:
This theory has been around for a while, and is pretty credible. Not so much for the likes of Albertasaurus or Gigantosaurus, but especially with T Rex and the other extremely large therapods, they'd have a far better chance in packs. One T Rex has a much lower chance of making a kill large enough to feed it, multiples become more dangerous proprtionally but not linearly.

If one could bring down X triceratops, three can probably bring down more than 3X, as they will, as a group, be harder to evade, more efficient in singling out prey, and also more effective in warding off scavengers.

There's also an interesting theory that T Rex itself was a scavenger.

Maybe you are thinking of Allosaurus? Pretty certain that Albertasaurus is one of the three candidates for the tracks, and the one from the bonebed.

Also, I would consider the whole obligate scavenger T. rex thing rather unlikely, for the following reasons:
1) There are at least two fossils (a Triceratops and Edmontosaurus) which show evidence of having survived a T. rex attack.
2) "T. rexis slow"- While likely true when compared to some modern animals, T. rex would have been running down even slower animals. Its tarsals also had an interesting "shock absorber" design, allowing it to run faster than its legs might otherwise appear to allow it.
3) Reliant on smell, not sight- Eyes were large and binocular vision was possible. Wolves are also predators who rely heavily on smell.

Sorry, don't have sources on-hand.

This needs to happen

large size is usually a minus in predation. You have to expend too many calories to get too few. But it's great for muscling in after someone else has already done the work.
But the idea that's it is just a different kind of vulture doesn't appeal.

 Ensis Ferrae wrote:

 Bullockist wrote:
That's not a T-rex . This is a T-rex


http://en.wikipedia.org/wiki/Tony_Williams_(rugby_league)

He also hunts in a pack.

I see your T-Rex, and raise you.... I dunno, something that eats T-Rex:







Also... Union > League

Ok now we have 4 people on Bulls patented gak list

That thing you tried indicate that could eat THE t-rex in fact would just fall down dead from kidney failure.

 Ensis Ferrae wrote:
Makes ya wonder what a "turf war" between velociraptors and T-Rexes would look like

I don't think it would look like much.

Disregarding the fact that velociraptors lived in central Asia and the tyrannosaurus lived in North America, the velociraptor was only about foot and half to the hip and less than six feet long while the tyrannosaurus was about thirteen feet to the hip and up forty feet long. I don't think an adult tyrannosaurus (let alone a pack of them) would pay much mind to a velociraptor.

Agreed, put a Utah raptor on there and it gets more interesting.

https://images.search.yahoo.com/images/view;_ylt=AwrB8o_oi9dTcEEAjH2JzbkF;_ylu=X3oDMTIzZjJiM21hBHNlYwNzcgRzbGsDaW1nBG9pZAM5NWNhNzhmOGIxZmZkNTM5OGE2N2EyN2VlZGE5YzEyNQRncG9zAzI0BGl0A2Jpbmc-?back=https%3A%2F%2Fimages.search.yahoo.com%2Fsearch%2Fimages%3F_adv_prop%3Dimage%26va%3Dutahraptor%2Bvs%2Bt%2Brex%26fr%3Dmcafee%26tab%3Dorganic%26ri%3D24&w=1400&h=795&imgurl=bucketfoot-al.tripod.com%2FDinoModels%2FPapo_Rex.jpg&rurl=http%3A%2F%2Fbucketfoot-al.tripod.com%2FDinoModels%2Findex.album%2Fpapo-trex-utahraptor-135-scale%3Fi%3D14&size=144.6KB&name=Papo+TRex+%26+%3Cb%3EUtahraptor%3C%2Fb%3E+1%3A35+Scale&p=utahraptor+vs+t+rex&oid=95ca78f8b1ffd5398a67a27eeda9c125&fr2=&fr=mcafee&tt=Papo+TRex+%26+%3Cb%3EUtahraptor%3C%2Fb%3E+1%3A35+Scale&b=0&ni=21&no=24&ts=&tab=organic&sigr=12qj6mv36&sigb=13g8tn8dl&sigi=11g2e14r8&sigt=118g42aeq&sign=118g42aeq&.crumb=0Mt6/A761E0&fr=mcafee

 Frazzled wrote:
Agreed, put a Utah raptor on there and it gets more interesting.

Lol, I suppose that it was the Utah Raptor I was thinking of (the one called a Velociraptor in Jurassic Park). Since we know that many dinosaurs were very, VERY large, it makes some sense to me that these sorts of raptors would be in packs of 10-30, which if they swarm a large enough target, I'd guess they could take down a single T-Rex as a pack (or do we use the Raven nomenclature of a Murder?)