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 or 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.
Trailer
Recently Updated Shows

Chopped
Chopped is a cooking competition show that is all about skill, speed and ingenuity. Each week, four chefs compete before a panel of expert judges and turn baskets of mystery ingredients into an extraordinary three-course meal. Course by course, the chefs will be "chopped" from the competition until only one winner remains. The challenge? They have seconds to plan and 30 minutes to cook an amazing course with the basket of mystery ingredients given to them moments before the clock starts ticking! And the pressure doesn't stop there. Once they've completed their dish, they've got to survive the Chopping Block where our three judges are waiting to be wowed and not shy about voicing their culinary criticisms! Our host, Ted Allen, leads this high-energy, high-pressure show that will have viewers rooting for a winner and cheering for the losers. Chopped is a game of passion, expertise and skill — and in the end, only one chef will survive the Chopping Block. Who will make the cut? The answer is on Chopped!

Wednesday
Smart, sarcastic and a little dead inside, Wednesday Addams investigates a murder spree while making new friends — and foes — at Nevermore Academy.

Mistletoe Murders
Emily Lane is a good-natured Christmas shop owner with a secret past. When local murders begin to pop up in Fletcher's Grove, Emily can't help but to use her unique talents from her past life to help solve murders that affect people in her new life. She crosses paths with Detective Sam Wilner who she starts to make a connection with, until he comes to learn there is more to Emily than meets the eye.

Secret Nazi Ruins
From tunnels to towers, artillery sites, resistance nests and communication centers, Nazi Germany left their footprint throughout the world. To this day, silent remains still exist, sentinels guarding clues about plots that Hitler was unable to carry out. Secret Nazi Ruins digs up mysteries from some of the most covert projects as experts dissect and reveal the purpose of these structures, their makeup, and technical design.