Bite of T.Rex 'stronger than all'

 

When it comes to biting power, Tyrannosaurus rex was the undisputed king, a study has shown.

No living or extinct creature that ever walked the earth has been able to match the chomping force of the iconic dinosaur's jaws, researchers believe.

The findings, based on computer simulations, suggest that T. rex hunted large prey which it despatched with bone-crushing bites.

Experts have been divided on the jaw power of T. rex, which lived at the end of the dinosaurs' reign 65 million years ago.

Some believe it had a modest bite which limited the carnivore to scavenging dead carcasses. Others contend that T. rex was an active predator whose jaws were a fearsome weapon.

The research involved "reverse engineering" the jaw muscles of an adult T. rex using computer models.

No one knows precisely what the muscles of dinosaurs were like, so the scientists tested a range of values.

Even with a margin of error, the study showed that a T. rex bite was twice as powerful as previously predicted.

The force exerted ranged from 20,000 to 57,000 Newtons, or 4,496 to 12,814 pounds. This means T. rex's jaws were four times stronger than those of the American alligator, which has the most powerful bite of any living animal. One wild alligator measured by scientists bit with a force of 2,960 pounds.

To put the findings in context, the researchers scaled up the skulls of a human, alligator, juvenile T. rex and another meat-eating dinosaur, Allosaurus, to match the size of an adult T. rex.

In each case, bite forces increased as expected but they still failed to match that of an adult T. rex, suggesting that the dinosaur had the most powerful bite of any living or extinct land-dwelling animal.

Dr Karl Bates, from the University of Liverpool, who led the research published today in the Royal Society journal Biology Letters, said: "The power of the T. rex jaw has been a much debated topic over the years. Scientists only have the skeleton to work with as muscle does not survive with the fossil, so we often have to rely on statistical analysis or qualitative comparisons to living animals, which differ greatly in size and shape from the giant enigmatic dinosaurs like T. rex.

"As these methods are somewhat indirect, it can be difficult to get an objective insight into how dinosaurs might have functioned and what they may or may not have been capable of in life.

"Our results show that the T. rex had an extremely powerful bite, making it one of the most dangerous predators to have roamed our planet. Its unique musculoskeletal system will continue to fascinate scientists for years to come."

PA

News
peoplePerformer had recently been diagnosed with prostate cancer
News
The surrealist comedian at the Q Awards in 2010
people
News
i100
Arts and Entertainment
Media baron Rupert Murdoch owns News Corps and 20th Century Fox
theatrePlaywright David Williamson is struggling to find a big name to star as the media mogul
PROMOTED VIDEO
News
ebooksAn unforgettable anthology of contemporary reportage
Life and Style
Six of the 76 Goats' cheese samples contained a significant amount of sheep's cheese
food + drink
News
i100
News
Russell Brand arriving for the book launch in East London
peopleRussell Brand cancels his book launch debate due to concerns about the make-up of the panel
Arts and Entertainment
JK Rowling will not be releasing a 'romance' novel anytime soon
books
Life and Style
tech

Of all the computers Apple has ever made there’s only one that Steve Jobs had to sell his car to finance

Latest stories from i100
Have you tried new the Independent Digital Edition apps?
Independent Dating
and  

By clicking 'Search' you
are agreeing to our
Terms of Use.

iJobs Job Widget
iJobs General

Systems Tester - Functional/Non-Functional/Full Life Cycle

£20000 - £22000 per annum: Ashdown Group: Systems Tester - Functional/Non-Func...

SQL Developer with T-SQL, Watford, Hertfordshire - £350 - £360

£350 - £360 per day: Ashdown Group: SQL Developer with T-SQL, Watford, Hertfor...

Business Intelligence Consultant - Central London - £80,000

£65000 - £80000 per annum: Ashdown Group: Business Intelligence Consultant - C...

SEN Teaching Assistant

£70 - £85 per day: Randstad Education Group: SEN Teaching Assistants needed in...

Day In a Page

How could three tourists have been battered within an inch of their lives by a burglar in a plush London hotel?

A crime that reveals London's dark heart

How could three tourists have been battered within an inch of their lives by a burglar in a plush London hotel?
Meet 'Porridge' and 'Vampire': Chinese state TV is offering advice for citizens picking a Western moniker

Lost in translation: Western monikers

Chinese state TV is offering advice for citizens picking a Western moniker. Simon Usborne, who met a 'Porridge' and a 'Vampire' while in China, can see the problem
Handy hacks that make life easier: New book reveals how to rid your inbox of spam, protect your passwords and amplify your iPhone

Handy hacks that make life easier

New book reveals how to rid your email inbox of spam, protect your passwords and amplify your iPhone with a loo-roll
KidZania lets children try their hands at being a firefighter, doctor or factory worker for the day

KidZania: It's a small world

The new 'educational entertainment experience' in London's Shepherd's Bush will allow children to try out the jobs that are usually undertaken by adults, including firefighter, doctor or factory worker
Renée Zellweger's real crime has been to age in an industry that prizes women's youth over humanity

'Renée Zellweger's real crime was to age'

The actress's altered appearance raised eyebrows at Elle's Women in Hollywood awards on Monday
From Cinderella to The Jungle Book, Disney plans live-action remakes of animated classics

Disney plans live-action remakes of animated classics

From Cinderella to The Jungle Book, Patrick Grafton-Green wonders if they can ever recapture the old magic
Thousands of teenagers to visit battlefields of the First World War in new Government scheme

Pupils to visit First World War battlefields

A new Government scheme aims to bring the the horrors of the conflict to life over the next five years
The 10 best smartphone accessories

Make the most of your mobile: 10 best smartphone accessories

Try these add-ons for everything from secret charging to making sure you never lose your keys again
Mario Balotelli substituted at half-time against Real Madrid: Was this shirt swapping the real reason?

Liverpool v Real Madrid

Mario Balotelli substituted at half-time. Was shirt swapping the real reason?
West Indies tour of India: Hurricane set to sweep Windies into the shadows

Hurricane set to sweep Windies into the shadows

Decision to pull out of India tour leaves the WICB fighting for its existence with an off-field storm building
Indiana serial killer? Man arrested for murdering teenage prostitute confesses to six other murders - and police fear there could be many more

A new American serial killer?

Police fear man arrested for murder of teen prostitute could be responsible for killing spree dating back 20 years
Sweetie, the fake 10-year-old girl designed to catch online predators, claims her first scalp

Sting to trap paedophiles may not carry weight in UK courts

Computer image of ‘Sweetie’ represented entrapment, experts say
Fukushima nuclear crisis: Evacuees still stuck in cramped emergency housing three years on - and may never return home

Return to Fukushima – a land they will never call home again

Evacuees still stuck in cramped emergency housing three years on from nuclear disaster
Wildlife Photographer of the Year: Intimate image of resting lions claims top prize

Wildlife Photographer of the Year

Intimate image of resting lions claims top prize
Online petitions: Sign here to change the world

Want to change the world? Just sign here

The proliferation of online petitions allows us to register our protests at the touch of a button. But do they change anything?