UW News
Stephanie Crofts
December 26, 2012
Piranha kin wielded dental weaponry even T. rex would have admired — with video
![Head, teeth and ribs of a piranha skeleton](https://uw-s3-cdn.s3.us-west-2.amazonaws.com/wp-content/uploads/sites/6/2012/12/04202737/PiranhaSkelaton-150x150.jpg)
Taking into consideration size, an ancient relative of piranhas weighing about 20 pounds delivered a bite with more force than prehistoric whale-eating sharks or – even – Tyrannosaurus rex.