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Clip: Season 44 | 2m 36s
Most wild turkeys are timid. But if one gets aggressive, what do you do?
Aired: 11/30/17
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting and PBS viewers.
Scientists have a new tool to edit genes in human cells to repair mutations. What is it?
To make their delivery schedule, how quickly must Santa and his reindeer travel the world?
Could a safety technology have prevented a train crash in Washington that killed three?
How Much Does a Thought Weigh?
Even in your mind, energy goes with it—bottle up that energy and it has mass.
Climate Action Without the Feds?
Can states, cities, and companies fulfill US obligations to the Paris Accord on their own?
What's Inside the Great Pyramid?
Cosmic particles reveal a previously hidden void in the Great Pyramid of Khufu in Egypt.
What makes a brain or machine conscious? This theory is beginning to provide some answers.
New Kind of Astrophysics is Born
Scientists saw and “heard” a dramatic cosmic explosion simultaneously for the first time.
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.
Engineers are using origami to design drugs, micro-robots, and future space missions.
Explore the hidden world of energy storage and how it holds the keys to a greener future.
