Professionals teach dogs to guard against intruders and attack on command.
Prehistoric Predators: Wolf:
SUN AUGUST 19 9P et/pt:
NGC Wild: http://www.ngcwild.c om?source=4003
How were the blocks raised to the top of the 489ft Great Pyramid? An architect develops a theory about a snaking internal ramp that's been hidden inside the pyramid for 4500 years.
Unlocking the Great Pyramid :
SUN NOVEMBER 16 9P et/pt
It's gruesome work: cutting through a deceased person's body to find what caused their death.
See all National Geographic videos:
http://video.nati onalgeographic.com/v ideo/?source=4001
Guy Harvey and a team of fishermen forgo a possible marlin world record in order to tag the giant fish.
Hooked Again: Monster Fish! :
SUN OCTOBER 14 9P et/pt :
http://channel.na tionalgeographic.com /channel/video/?sour ce=4003
These gigantic cows resemble bovine body-builders. See how breeders have achieved such amazing results.
Extreme Genes :
THURS FEBRUARY 21 9P et/pt : http://channel.natio nalgeographic.com/ch annel/?source=4003
When you're an anaconda you don't need venom to take down your prey, even if its the world's largest rodent, a capybara, weighing somewhere in the neighboorhood of one hundred pounds!
See all National Geographic videos: http://video.nationa lgeographic.com/vide o/?source=4001
Step inside Apollo 11 when Neil Armstrong and crew had less than 30 seconds of fuel left before landing on the moon.
Secrets of the Moon Landings :
SUN NOVEMBER 4 9P et/pt :
http://channel.na tionalgeographic.com /channel/video/?sour ce=4003
A man gets bitten by a venomous rattlesnake and tries to find civilization before his body shuts down.
Explorer: Ultimate Viper :
WED NOVEMBER 21 8P et/pt :
http://channel.na tionalgeographic.com /channel/explorer/?s ource=4003
A Philippine mother believes her young son is possessed, and seeks an exorcism.
See all National Geographic videos:
http://video.nati onalgeographic.com/? source=4001
