Posted by Jennifer Viegas Mon Dec 12, 2011 09:39 AM ET | 0
With its saw-like teeth and sleek body, this voracious predator was equipped to rip flesh from prey. Read more

Posted by Jennifer Viegas Fri Nov 18, 2011 07:00 AM ET | 0
Arctic life was tough on dinosaurs, with many not making it to their 20th birthday. Read more

Posted by Jennifer Viegas Thu Sep 29, 2011 02:00 PM ET | 0
The bat's superfast muscles flex up to 200 times per second. Read more

Posted by Jennifer Viegas Wed Aug 24, 2011 01:08 PM ET | 0
The small, shrew-like animal spent some of its time in trees while dinosaurs lived on land. Read more

Posted Mon Jul 25, 2011 02:58 PM ET | 0
Pork, farm-raised salmon, chicken and turkey are all on a par when it comes to greenhouse gas emissions, but pigs are in a category of their own when it comes to environmental impact. Read more

Posted by Jennifer Viegas Fri Jun 10, 2011 11:39 AM ET | 0
This dinosaur may be pint-sized, but it was still a predator. Read more

Posted by Jennifer Viegas Mon May 9, 2011 03:00 PM ET | 0
No helpless child, this juvenile dinosaur didn't have to rely on mom and dad for a meal. Read more

Posted by Jennifer Viegas Wed Apr 13, 2011 07:00 AM ET | 0
The dinosaur lived about 205 million years ago in what is now Ghost Ranch, N.M., which inspired the animal's spooky name. Read more

Posted by Jennifer Viegas Tue Feb 15, 2011 07:01 PM ET | 0
Plants would seem to live in the slow lane, but this carnivorous plant may be an exception. Read more

Posted Wed Jan 26, 2011 11:01 AM ET | 0
No shameless scavenger, T. rex was six tons of teeth, muscle and sinew -- a born hunter. Read more

Posted Tue Jan 25, 2011 09:43 AM ET | 0
The tiny, bug-eating dinosaur is the only one of its kind known to have just one finger. Read more

Posted Fri Jan 21, 2011 03:00 AM ET | 0
New research reveals that terror birds - large, prehistoric carnivores that evolved alongside dinosaurs - hunted their prey with quick, opportunistic strikes. Trace Dominguez reports. Watch video
Posted by Jennifer Viegas Thu Jan 13, 2011 02:00 PM ET | 0
A small, two-legged dinosaur lived 230 million years ago and was an early ancestor of all predatory dinos. Read more

Posted by Jennifer Viegas Mon Dec 20, 2010 03:00 PM ET | 0
The beak was like a Swiss Army knife for dinosaurs because it provided many tools in one unit. Read more

Posted by Jennifer Viegas Mon Dec 13, 2010 08:39 AM ET | 0
A new method of identifying human gnaw marks on bones suggest early humans got nutrition from each other's flesh. Read more

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