Aired
November 22, 2017
NOVA
NOVA
Extreme Animal Weapons #S44E26
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.
Episode 26 of Season 44 from NOVA — available to stream in HD on any device.
Comments & Discussions
Join the conversation
Sign in to leave a comment
No comments yet
Be the first to share your thoughts!
Recommended
Because you liked NOVA
24 Hours in Police Custody
24 Hours in Police Custody
Breaking4: Faith Kipyegon vs. the 4-Minute Mile
Breaking4: Faith Kipyegon vs. the 4-Minute Mile
Unexplained: Caught On Camera
Unexplained: Caught On Camera
Súper Sara
Super Sara
Hazardous History with Henry Winkler
Hazardous History with Henry Winkler
Attack on London: Hunting the 7/7 Bombers
Attack on London: Hunting the 7/7 Bombers
To Catch a Stalker
To Catch a Stalker
All the Sharks
All the Sharks
Evil Lives Here: The Killer Speaks
Evil Lives Here: The Killer Speaks
Evil Lives Here: Shadows Of Death
Evil Lives Here: Shadows Of Death
Explore Content
Search for movies, TV shows, collections, manga, or people
Trending Now