JUN 24, 2018 07:26 PM PDT

Why Did T. Rex Have Such Small Arms?

WRITTEN BY: Anthony Bouchard
3 10 1695

While the Tyrannosaurus Rex may have had large and intimidating jaws, it may have been over-compensating for something. After all, the fearsome dinosaur sported stubby little arms that would have been virtually useless for hunting and catching prey.

While the beast’s body would have measured almost 40 feet long from head to tail, the arms would have measured a laughable 3.3 feet long. But why did the T. Rex have such tiny arms? The short answer is: it’s complicated.

The complications come from the fact that no one has a definitive answer. One idea links the small arms to evolution, an argument that suggests how T. Rex evolved from therapods and how the arms grew smaller as the head grew larger.

Intriguingly, these tiny arms weren’t wimpy by any means; in fact, they may have been quite muscular. These findings indicate that the arms may have played a physical role in the T. Rex’s life, whether they helped stabilize the dinosaur during feeding, mating, or otherwise.

Future research into the T. Rex’s history could uncover more details, but it will take some more time.

About the Author
  • Fascinated by scientific discoveries and media, Anthony found his way here at LabRoots, where he would be able to dabble in the two. Anthony is a technology junkie that has vast experience in computer systems and automobile mechanics, as opposite as those sound.
You May Also Like
JUL 18, 2018
Videos
JUL 18, 2018
What Does it Take to Burst a Stomach?
People often say they feel like they feel like they’re going to burst after consuming a large meal, but is it really possible for your stomach to bur
JUL 24, 2018
Chemistry & Physics
JUL 24, 2018
How Does It Taste? Want Some Salt (and Microplastics)?
Looks can be very deceiving: pristine, pure-like grains of sea salt can be the perfect trojan horse for the invasion of the omnipresent environmental villa
JUL 25, 2018
Videos
JUL 25, 2018
Is Your Brain Completely Unconscious During Anesthesia?
For surgical procedures, anesthesia is a necessary part of patient care. Anesthesia is thought to render a patient unconscious, but according to new r
JUL 25, 2018
Videos
JUL 25, 2018
What the Cockroach Genome can Teach us
The genome of the cockroach was recently sequenced, and scientists have gained some insight into why they are so tough.
JUL 28, 2018
Videos
JUL 28, 2018
23andMe Announces Partnership with Drug Company GSK
The collaboration aims to improve personalized therapeutics.
JUL 30, 2018
Videos
JUL 30, 2018
Is it Good to Open Your Windows During a Hurricane?
You might’ve heard the idea that opening your windows during a hurricane can reduce the stress on your home’s roof and walls as it’s bein
Loading Comments...