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Researchers find first sign that tyrannosaurs hunted in packs
Guardian (UK) ^ | Wednesday 23 July 2014 | Ian Sample

Posted on 07/27/2014 6:46:58 PM PDT by SunkenCiv

The collective noun is a terror of tyrannosaurs: a pack of the prehistoric predators, moving and hunting in numbers, for prey that faced the fight of its life.

That tyrannosaurs might have hunted in groups has long been debated by dinosaur experts, but with so little to go on, the prospect has remained firmly in the realm of speculation.

But researchers in Canada now claim to have the strongest evidence yet that the ancient beasts did move around in packs.

At a remote site in north-east British Columbia - in the west of Canada - they uncovered the first known tyrannosaur trackways, apparently left by three animals going the same way at the same time...

The footprints were so well-preserved that even the contours of the animals' skin were visible. "You start wondering what it would have been like to have been there when the tracks were made. The word is terror. I wouldn't want to meet them in a dark alley at night," McCrea said.

From the size of the footprints, the researchers put the beasts in their late 20s or early 30s – a venerable age for tyrannosaurs. The depth of the prints and other measurements suggest the tracks were left at the same time. They date back to nearly 70m years ago.

Close inspection of the trackways found that the tyrannosaur that left the first set of prints had a missing claw from its left foot, perhaps a battle injury. Details of the study are published in the journal Plos One.

(Excerpt) Read more at theguardian.com ...


TOPICS: History; Science; Travel
KEYWORDS: dinosaurs; godsgravesglyphs; paleontology; science; tyrannosaurusrex
subtitle "Discovery of three sets of dinosaur trackways in Canada reveals that predators were running together".

1 posted on 07/27/2014 6:46:58 PM PDT by SunkenCiv
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To: Renfield; StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; ...
Thanks Renfield.


2 posted on 07/27/2014 6:48:04 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

3 posted on 07/27/2014 6:49:04 PM PDT by ClearCase_guy ("Harvey Dent, can we trust him?" http://www.youtube.com/watch?v=HBsdV--kLoQ)
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To: SunkenCiv

The stub arms might have been vestigial wings.


4 posted on 07/27/2014 6:49:28 PM PDT by BigEdLB (Now there ARE 1,000,000 regrets - but it may be too late.)
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To: SunkenCiv

With frickin lasers on their heads!!!!!


5 posted on 07/27/2014 6:49:54 PM PDT by cripplecreek (Remember the River Raisin.)
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To: cripplecreek

How much would Dr. Evil pay for one of those?


6 posted on 07/27/2014 6:53:20 PM PDT by Jack Hydrazine (Pubbies = national collectivists; Dems = international collectivists; We need a second party!)
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To: SunkenCiv

So they are not lone scavengers who needed a huge territory to themselves??

These theories change too much. I thought that science was settled, darn it.


7 posted on 07/27/2014 6:57:17 PM PDT by GeronL (Vote for Conservatives not for Republicans)
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To: GeronL

Theories are based on evidence, and more evidence is found all the time. It’s not handed down in stone.


8 posted on 07/27/2014 6:59:15 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

I think its possible that some hunted or even scavenged alone while others travelled in packs. Like the lions where the dominant male has booted out some rivals.


9 posted on 07/27/2014 7:01:19 PM PDT by GeronL (Vote for Conservatives not for Republicans)
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To: cripplecreek; Jack Hydrazine

http://www.youtube.com/watch?v=RkB-hDXqffI


10 posted on 07/27/2014 7:03:26 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: cripplecreek

LGBT Trannyosaurs with lasers on their heads!!

Hunt in packs and strike terror in everyone!


11 posted on 07/27/2014 7:03:48 PM PDT by bakeneko
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To: BigEdLB

Their relatives the velociraptors hunted in packs, so this does make sense.


12 posted on 07/27/2014 7:04:06 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: ClearCase_guy

That must have been taught in art school. /badumpdump


13 posted on 07/27/2014 7:04:47 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Wow. A pack of 7 ton monsters terrorizing herbivores. The 8 year old kid in me is giddy at the thought. I subscribe to the theory that they could run and weren’t slow scavengers.


14 posted on 07/27/2014 7:05:50 PM PDT by miliantnutcase
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To: GeronL

That injury to one of them fits your idea very well.


15 posted on 07/27/2014 7:05:59 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Actually, it IS handed down in stone... Roflol


16 posted on 07/27/2014 7:07:08 PM PDT by Pikachu_Dad (Impeach Sen Quinn)
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To: GeronL
“I think its possible that some hunted or even scavenged alone while others travelled in packs. Like the lions where the dominant male has booted out some rivals.”

You may be correct. Personally, I like to think that they subsisted on chocolate and peanut butter, but I have no evidence - except for those Reeses wrappers that were carbon dated to the Jurassic period.

17 posted on 07/27/2014 7:07:26 PM PDT by pieceofthepuzzle
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To: SunkenCiv

I like my idea too. :p


18 posted on 07/27/2014 7:08:16 PM PDT by GeronL (Vote for Conservatives not for Republicans)
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To: miliantnutcase
Dave Mustaine posted this photo to twitter earlier tonight.

Image and video hosting by TinyPic
19 posted on 07/27/2014 7:09:35 PM PDT by cripplecreek (Remember the River Raisin.)
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To: SunkenCiv

Knockout game?


20 posted on 07/27/2014 7:15:02 PM PDT by 17th Miss Regt
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To: Jack Hydrazine

They say someday that they might be able to do it. Jurassic Park style. With a lot more science.


21 posted on 07/27/2014 7:17:27 PM PDT by FreedomStar3028 (Evil must be punished.)
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To: cripplecreek

Rofl... well played Dave. Well played.


22 posted on 07/27/2014 7:20:07 PM PDT by miliantnutcase
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To: SunkenCiv

In this case, we have an eyewitness account. Steven Speilburg observed this very behavior when he was on his recent Triceratops hunting expedition. Just ask him, or check it out on facebook.


23 posted on 07/27/2014 7:35:26 PM PDT by centurion316
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To: Pikachu_Dad

/rimshot!


24 posted on 07/27/2014 7:38:38 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

A gang attacked King Kong and he wrapped three of ‘em up in cellophane.


25 posted on 07/27/2014 7:41:29 PM PDT by tumblindice (America's founding fathers: all armed conservatives)
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To: 17th Miss Regt; centurion316; tumblindice

:’)


26 posted on 07/27/2014 7:45:06 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: miliantnutcase; GeronL

Predators, but current predators also resort to scavenging when they’re hungry. :’)


27 posted on 07/27/2014 7:46:03 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: cripplecreek


28 posted on 07/27/2014 7:53:13 PM PDT by Chode (Stand UP and Be Counted, or line up and be numbered - *DTOM* -vvv- NO Pity for the LAZY - 86-44)
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To: SunkenCiv

true

but I was thinking that any threat to the boss are killed or expelled from the pack, like with lions, where they become loners.


29 posted on 07/27/2014 8:10:06 PM PDT by GeronL (Vote for Conservatives not for Republicans)
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To: SunkenCiv

Hopefully there will be a cutesy name for a group of Tyrannosaurus. Like a clowder of cats, a congregation of alligators, a murder of crows, and a horde of hamsters.

A “ballet” of Tyrannosauruses?

A “dainty” of Tyrannosauruses?

A “sweetness” of Tyrannosauruses?


30 posted on 07/27/2014 8:24:22 PM PDT by yefragetuwrabrumuy ("Don't compare me to the almighty, compare me to the alternative." -Obama, 09-24-11)
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To: SunkenCiv

When you’re a Rex you’re a Rex all the way
From you’re first chomp chomp to you’re last dying day


31 posted on 07/27/2014 8:35:18 PM PDT by xp38
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To: xp38

Regina!
I just met a Rex named Regina ...


32 posted on 07/27/2014 8:50:55 PM PDT by tumblindice (America's founding fathers: all armed conservatives)
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To: SunkenCiv

I just last week I saw the preserved T Rex footprint outside Tuba City, Arizona. There was only one that I saw, and there was no evidence of a pack, but there were hundreds of smaller herbivore prints all over the area. The three-toed T Rex print was huge, easily three foot from the heel spur to the middle toe which was about ten inches wide at its root.


33 posted on 07/27/2014 9:05:15 PM PDT by PUGACHEV
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To: pieceofthepuzzle
" Personally, I like to think that they subsisted on chocolate and peanut butter, but I have no evidence - except for those Reeses wrappers that were carbon dated to the Jurassic period. "

Impossible! Tyrannosaurs were from the Cretaceous. Allosaurs, however, could have been chocovorous. Try to come up with some tie-in to global warming and apply for a multimillion dollar federal research grant.

34 posted on 07/27/2014 9:20:21 PM PDT by Flag_This (You can't spell "treason" without the "O".)
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To: yefragetuwrabrumuy

The article uses the term a terror of T-rex. Kind of a nice ring to it.


35 posted on 07/27/2014 9:21:06 PM PDT by Flick Lives ("I can't believe it's not Fascism!")
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To: yefragetuwrabrumuy
Hopefully there will be a cutesy name for a group of Tyrannosaurus. Like a clowder of cats, a congregation of alligators, a murder of crows, and a horde of hamsters.

A nexus of Rex's?
36 posted on 07/27/2014 9:43:41 PM PDT by jjsheridan5 (Remember Mississippi -- leave the GOP plantation)
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To: SunkenCiv
Theories are based on evidence, and more evidence is found all the time. It’s not handed down in stone.

Uhhhhh, yes it is. That's why they call it the fossil record... ;)

37 posted on 07/27/2014 10:11:07 PM PDT by To Hell With Poverty (Epesians 6:12 becomes more real to me with each news cycle.)
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To: Pikachu_Dad

Aw, you beat me to it.


38 posted on 07/27/2014 10:13:10 PM PDT by To Hell With Poverty (Epesians 6:12 becomes more real to me with each news cycle.)
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To: SunkenCiv

All net baby. Swish!


39 posted on 07/27/2014 10:52:18 PM PDT by Pikachu_Dad (Impeach Sen Quinn)
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To: SunkenCiv

But I thought the theories, like the fossils, were embedded in stone, same as the heads of my instructors that handed them down from upon high on the lectern.


40 posted on 07/27/2014 11:19:38 PM PDT by ApplegateRanch (Love me, love my guns!©)
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To: cripplecreek

Excellent, Dave.


41 posted on 07/28/2014 6:01:42 AM PDT by EricT. (Everything not forbidden is compulsory.)
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To: SunkenCiv
Theories are based on evidence, and more evidence is found all the time. It’s not handed down in stone.

In paleontology the evidence usually is handed down in stone.

42 posted on 07/28/2014 6:52:52 AM PDT by Straight Vermonter (Posting from deep behind the Maple Curtain)
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To: GeronL

Real science is NEVER settled. When new data conflicts with an existing theory, it’s blown out of the water and a new theory must be formulated.

It’s not “Obama said it, I believe it and that settles it.”


43 posted on 07/28/2014 2:08:35 PM PDT by jimt (Fear is the darkroom where negatives are developed.)
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To: Chode

What’s that from?

Freegards


44 posted on 07/28/2014 2:11:49 PM PDT by Ransomed
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To: Ransomed
an old Roger Dean coffee table book... pretty cool, no? he did a lot of 70's album covers for yes, etc

iirc, the book title was Views

45 posted on 07/28/2014 2:36:45 PM PDT by Chode (Stand UP and Be Counted, or line up and be numbered - *DTOM* -vvv- NO Pity for the LAZY - 86-44)
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To: Chode

Thanks, very cool. It does look very Dean-y now. It reminded me of Jack Vance’s ‘Dragon Masters,’ which won the 1963 Hugo. Image search ‘Jack Vance Dragon Masters’ and similar things show up.

Freegards


46 posted on 07/28/2014 2:47:25 PM PDT by Ransomed
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To: Ransomed


47 posted on 07/28/2014 3:04:41 PM PDT by Chode (Stand UP and Be Counted, or line up and be numbered - *DTOM* -vvv- NO Pity for the LAZY - 86-44)
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To: yefragetuwrabrumuy

They all went extinct because of reptile dysfunction.


48 posted on 07/30/2014 8:56:17 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: PUGACHEV

Nice!


49 posted on 07/30/2014 8:56:46 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: xp38

;’)


50 posted on 07/30/2014 8:56:55 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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