NOVA
Season 44 Episode 26 - Extreme Animal Weapons
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.
Episodes in Season 44
15 Years of Terror
55 min
School of the Future
55 min
Great Human Odyssey
55 min
Super Tunnel
55 min
Treasures of the Earth: Gems
55 min
Treasures of the Earth: Metals
55 min
Treasures of the Earth: Power
55 min
Secrets of the Sky Tombs
55 min
The Nuclear Option
55 min
Search for the Super Battery
55 min
Ultimate Cruise Ship
55 min
The Origami Revolution
55 min
Why Trains Crash
55 min
Holocaust Escape Tunnel
55 min
Building Chernobyl's Megatomb
55 min
Chinese Chariot Revealed
55 min
Poisoned Water
55 min
Eclipse Over America
55 min
Ghosts of Stonehenge
55 min
Death Dive to Saturn
55 min
Secrets of the Shining Knight
55 min
Secrets of the Forbidden City
55 min
Killer Volcanoes
55 min
Killer Hurricanes
55 min
Killer Floods
55 min
Extreme Animal Weapons
55 min
Bird Brain
55 min
Day the Dinosaurs Died
55 min
