A crab spider ambushes her prey by changing colors.
(02:35)Cabbies in Buenos Aries are in on a city-wide counterfeit ring scamming tourists out of their money.
(03:09)The polar bear is the largest land carnivore on the planet - and packs a serious punch.
(03:06)A tremendous mouse infestation invades the Australian farming community. But what could be causing the plague-like conditions?
(02:51)A Bornean Rhino takes a mud bath.
(02:05)As they race to help evacuees from the World Trade Center, the NYPD ESU barely make it out of the North Tower before it collapses.
(02:59)A flying lizard is pursued by a flying snake.
(01:27)Whenever dust storms are observed on Mars, dust devils are often present, leaving long, dark telltale trails.
(03:02)After the zebra's seemingly mysterious journey lies a gigantic source of needed minerals - the Salt Pans.
(01:45)The trip on the Yukon nears an end, and the teams gear up for the last leg - the rapids.
(01:48)The brief flyby of Voyagers 1 and 2 raised many questions for spacecraft Galileo to answer.
(03:09)Marty and Willi try and hunt some meat for the group, but can Willi’s gun shoot true?
(02:18)The working class of Russia begins an uprising that leads to the tzar's abdication of the throne.
(03:06)Mercury's surface has remained undisturbed since the dawn of the Solar System, giving us clues to the past.
(03:17)Marty and Matt are trapped on the wrong side of the river and time runs short to get to the LZ.
(01:07)In order to deter German bombers during WWI, Parisians constructed an elaborate fake city several miles away.
(02:47)Meet a Columbian cocaine farmer, for whom growing any other crop would condemn him and his family to poverty.
(02:59)The Seavey brothers push their way through bear country brush on the way to the LZ.
(01:52)Can a Formula One race be run using only electric cars?
(02:53)Millions of golden jellyfish live in just one lake -- and they follow the path of the sun.
(02:40)