Turn off light Favorite Comment 3562
Download HD

NOVA - Season 44 Episode 26

From lobster claws and dog teeth to bee stings and snake fangs, every creature depends on a weapon. But some are armed to extremes that make no practical sense—whether it’s bull elks with giant 40-pound antler racks or tiny rhinoceros beetles with horns bigger than their body. What explains giant tusks, horns, and claws that can slow an animal down and even impair health and nutrition? NOVA investigates the riddle of outsize weaponry and uncovers a bold new theory about what triggers an animal arms race. In creatures as varied as dung beetles and saber-toothed tigers, shrimp and elephants, the same hidden factors trigger the race and, once started, these arms races unfold in exactly the same pattern. Join scientists as they crack the secret biological code that underlies nature’s battleground.

Share:
 
 
 
 

Rating : 8.3/10 by 3945 users

First Air Date : 1974-03-03

Last Air date : 2024-11-27

Runtime : 57 minutes

Genre : Documentary

Cast :

Crew :

Quality :  

Subtitles :   

Comment :

12 Comment
Taylor Mackenzie
Amazing! I love this site
Aston Ayers
Only Signup is easy and free, finally I can watch this movie NOVA with good quality. Thank you!
Ashley Ann
Been waiting to see this movie for months. And finally came out too
Cheryl Lynn
This movie NOVA is very nice, with HD quality
Erin Cochran Cole
Great selection and quality is better than TV Cable, no kidding.
Kyle Magner
yes, i am also through this to watch movies
Eric Mn
Yes this really works! Just got my free account
Terry Barnes
One of the best movies I've seen this year!
Pastor Shahuano
Excited, Happy Watching guys!
Laura Velez Garcia
Thanks, I'm so glad to be watching this movie
Wouter van der Giessen
Laura Velez Garcia yes same me too
Janet McCann
Sign up was really easy. Less than 1 minute I was hooked up