HOME >> BIOLOGY >> NEWS
Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex

CHICAGO -- It could bite a shark in two. It might have been the first king of the beasts. And it could teach scientists a lot about humans, because it is in the sister group of all jawed vertebrates.

Dunkleosteus terrelli lived 400 million years ago, grew up to 33 feet long and weighed up to four tons. Scientist have known for years that it was a dominant predator, but new embargoed research to be published in the Royal Society journal Biology Letters on November 29 reveals that the force of this predators bite was remarkably powerful: 1,100pounds. The bladed dentition focused the bite force into a small area, the fang tip, at an incredible force of 8,000pounds per square inch.

Even more surprising is the fact that this fish could also open its mouth very quicklyin just one fiftieth of a secondwhich created a strong suction force, pulling fast prey into its mouth. Usually a fish has either a powerful bite or a fast bite, but not both.

The most interesting part of this work for me was discovering that this heavily armored fish was both fast during jaw opening and quite powerful during jaw closing, said Mark Westneat, Curator of Fishes at The Field Museum and co-author of the paper. This is possible due to the unique engineering design of its skull and different muscles used for opening and closing. And it made this fish into one of the first true apex predators seen in the vertebrate fossil record. This formidable fish was a placoderms, a diverse group of armored fishes that dominated aquatic ecosystems during the Devonian, from 415 million to 360 million years ago. Dunkleosteus bladed jaws suggest that it was among the first vertebrates to use rapid mouth opening and a powerful bite to capture and fragment evasive prey prior to ingestion.

To determine the bite force, scientists used the fossilized skull of a Dunkleosteus terrelli to recreate the musculature of the ancient fish. This biomechanical model showed the jaws force and mo
'"/>

Contact: Greg Borzo
gborzo@fieldmuseum.org
312-665-7106
Field Museum
28-Nov-2006


Page: 1 2

Related biology news :

1. Ancient retrovirus sheds light on modern pandemic
2. Ancient Etruscans were immigrants from Anatolia, or what is now Turkey
3. Ancient DNA traces the woolly mammoths disappearance
4. Ancient amphibians evolved a bite before migrating to dry land
5. Ancient T. rex and mastodon protein fragments discovered, sequenced
6. Ancient coral reef tells the history of Kenyas soil erosion
7. Ancient genes used to produce salt-tolerant wheat
8. Ancient climate change may portend toasty future
9. Ancient ape ruled out of mans ancestral line
10. Ancient birds flew on all-fours
11. Ancient raptors likely feasted on early man, study suggests

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/21/2020)... ... May 21, 2020 , ... ... IntegritySM technology-based services specializing in background and medical screening, announces the launch ... planning and keeping their workforce safe. The new service is provided by ...
(Date:5/21/2020)... ... May 20, 2020 , ... Law Enforcement has always been a highly ... us. The positions of these men and women put them constantly in harm’s way ... rules precisely. Officers have always had to face very high daily stress. Now, COVID-19 ...
(Date:5/14/2020)... ... May 12, 2020 , ... ... helps Life Science Manufacturers accurately and easily project contracted liabilities with payers, ... Gross-to-Net models by projecting discounts/rebates to Commercial and Government entities, Copay and ...
Breaking Biology News(10 mins):
(Date:5/15/2020)... ... May 14, 2020 , ... Children ... open heart surgeries before becoming adults. The reason: there are no heart ... critical unmet need, the Department of Defense has awarded Draper, Boston Children’s Hospital ...
(Date:5/14/2020)... YORBA LINDA, Calif. (PRWEB) , ... May 12, ... ... of life science tools for translational research, is bringing together thousands of industry ... , The scientific program highlights two plenary speakers, Carl June, MD, Director of ...
(Date:5/5/2020)... , ... May 04, 2020 , ... ... solutions for the life sciences industry, today announced that Informa Training Partners, a ... changing its name to Red Nucleus Boston, effective immediately. , “The name change ...
(Date:4/26/2020)... ... April 23, 2020 , ... ... today, an online store providing applications and services for use on Microsoft Azure. ... business needs to sign up online for a built-for-purpose customer engagement capability to ...
Breaking Biology Technology:
Cached News: