JUN 24, 2018 07:26 PM PDT

Why Did T. Rex Have Such Small Arms?

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
SEP 20, 2018
Chemistry & Physics
SEP 20, 2018
"Silver Bullet" for Stinky Socks
Silver is known for its anti-microbial property for ages. As early as fourth century BC, the great Greek physician Hippocrates described the use of silver...
OCT 03, 2018
Videos
OCT 03, 2018
Understanding Brain Aneurysms
A brain aneurysm is a medical emergency, but many patients don’t understand much about them. First, it’s not the same a clot. An aneurysm is wh...
OCT 11, 2018
Videos
OCT 11, 2018
How Iceland is growing forests for the first time in a millennium
Iceland is perhaps one of the worst cases of deforestation that the world has seen. Over the last 1,000 years, the country's forests have been felled f...
OCT 11, 2018
Videos
OCT 11, 2018
The mystery behind why eating healthy is so expensive
Did you know that 36.5% of adults in the US are obese and 9.4% of the US has diabetes? It's not a secret that it's cheaper to buy unhealthy food th...
OCT 16, 2018
Videos
OCT 16, 2018
Can the Bacteria That we Carry Give us Special Powers?
The bacteria that we carry in and on our bodies can affect our health and well-being in many ways....
OCT 22, 2018
Videos
OCT 22, 2018
Are GMO's Safe?
While consumers may have valid ethical concerns about GMOs, 30 years of research says they are safe to eat....
Loading Comments...