New evidence for combat and cannibalism in tyrannosaurs
19 replies, posted
[url=http://www.sciencedaily.com/releases/2015/04/150409083201.htm]Source[/url]
[img]http://images.sciencedaily.com/2015/04/150409083201_1_540x360.jpg[/img]
[quote]A new study documents injuries inflicted in life and death to a large tyrannosaurine dinosaur. The paper shows that the skull of a genus of tyrannosaur called Daspletosaurus suffered numerous injuries during life, at least some of which were likely inflicted by another Daspletosaurus. It was also bitten after death in an apparent event of scavenging by another tyrannosaur. Thus there's evidence of combat between two large carnivores as well as one feeding on another after death.
Daspletosaurus was a large carnivore that lived in Canada and was only a little smaller than its more famous cousin Tyrannosaurus. Like other tyrannosaurs it was most likely both an active predator and scavenger. The individual in question, from Alberta Canada, was not fully grown and would be considered a 'sub-adult' in dinosaur terms (approximately equivalent to an older teenager in human terms). It would have been just under 6 m long and around 500 kg when it died.
Researchers found numerous injuries on the skull that occurred during life. Although not all of them can be attributed to bites, several are close in shape to the teeth of tyrannosaurs. In particular one bite to the back of the head had broken off part of the skull and left a circular tooth-shaped puncture though the bone. The fact that alterations to the bone's surface indicate healing means that these injuries were not fatal and the animal lived for some time after they were inflicted.
Lead author Dr David Hone from Queen Mary, University of London said "This animal clearly had a tough life suffering numerous injuries across the head including some that must have been quite nasty. The most likely candidate to have done this is another member of the same species, suggesting some serious fights between these animals during their lives."
There is no evidence that the animal died at the hands (or mouth) of another tyrannosaur. However, the preservation of the skull and other bones, and damage to the jaw bones show that after the specimen began to decay, a large tyrannosaur (possibly of the same species) bit into the animal and presumably ate at least part of it.
Combat between large carnivorous dinosaurs is already known and there is already evidence for cannibalism in various groups, including tyrannosaurs. [/quote]
The same thing has been hypothesized about strange bite marks on the nose of Jane, the young Tyrannosaurus Rex (on display in Rockford)
[img]http://i.livescience.com/images/i/000/006/573/i02/091103-trex-Jane-bite-02.jpg?1296087058[/img]
[img]http://cdn.phys.org/newman/gfx/news/hires/2009/2-theterriblet.jpg[/img]
Maybe they just wanted to kiss each other and it went wrong
[QUOTE=Chrisordie;48086726]Maybe they just wanted to kiss each other and it went wrong[/QUOTE]
While at a talk a few months ago, they believed that some of it may have come from play fighting that went awry, as some Tyrannosaurs show evidence of long term healing in those areas.
[QUOTE=Chrisordie;48086726]Maybe they just wanted to kiss each other and it went wrong[/QUOTE]
Yeah like getting a vampire to suck your dick
[QUOTE=BFG9000;48086740]Yeah like getting a vampire to suck your dick[/QUOTE]
The risk would get your blood pumping though.
I don't see why people think theropods as large as t-Rex was completely covered in feathers, all that insulation would be fatal in a warm climate
[QUOTE=Stolons;48087147]I don't see why people think theropods as large as t-Rex was completely covered in feathers, all that insulation would be fatal in a warm climate[/QUOTE]
There is actually no direct evidence for T-Rexes having feathers at all, but scientists assume it due to other dinosaurs sharing the trait.
I would imagine a realistic interpretation would be this:
[thumb]http://cdn.phys.org/newman/gfx/news/hires/2012/1-warmandfuzzy.jpg[/thumb]
[thumb]https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Hell_Creek_dinosaurs_and_pterosaurs_by_durbed.jpg/1920px-Hell_Creek_dinosaurs_and_pterosaurs_by_durbed.jpg?1435686888035[/thumb]
[QUOTE=BFG9000;48086740]Yeah like getting a vampire to suck your dick[/QUOTE]
i have to add that to my list of things to do before i die
Well Jurassic World already told us all of this.
Well, back then you'd eat what you could, so if you starved, you'd eat other members of your specie/race.
They were animals after all
I think cannibalism is fucking metal, and cool.
But yes yes, I know, it's not part of civilized human society.
Isnt it kind of obvious that most species will fight eachother anyways??
[QUOTE=Black;48088033]There is actually no direct evidence for T-Rexes having feathers at all, but scientists assume it due to other dinosaurs sharing the trait.
I would imagine a realistic interpretation would be this:
[thumb]http://cdn.phys.org/newman/gfx/news/hires/2012/1-warmandfuzzy.jpg[/thumb]
[thumb]https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/Hell_Creek_dinosaurs_and_pterosaurs_by_durbed.jpg/1920px-Hell_Creek_dinosaurs_and_pterosaurs_by_durbed.jpg?1435686888035[/thumb][/QUOTE]
Skin impressions have had pin feather like structures, whether there was anything else is unknown.
[img]http://i.livescience.com/images/i/000/006/573/i02/091103-trex-Jane-bite-02.jpg?1296087058[/img]
Their eyes say this is consensual.
In that "kissing" position, I'm not even sure which one is at danger.. Is the left one about to bite the right one's nose off, or is the right one about to bite the left's jaw off?
no one is a winner, one dude loses his tongue and the other gets his nose fucked up
dinosaurs were retarded
[img]http://i.imgur.com/0SbEO8c.jpg[/img]
Holy shit someone stop them! They are devouring the other whole!.
One should definately take a T-Break when he reads:
"New evidence for combat and cannabis in tyrannosaurs"
[IMG]http://s3.postimg.org/oat0345c3/Rexalicious.jpg[/IMG]
Could you imagine just interlocking your top row of teeth with someone's bottom row and twisting around and shit? Cringing just thinking about it
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