-
Now Playing: Meet the real-life couple behind 'The Hot Zone'
-
Now Playing: UN names Ebola chief to end world's 2nd largest outbreak
-
Now Playing: Shark slaps fisherman with tail
-
Now Playing: Anti-government protesters clash with police in Russia
-
Now Playing: 22 miners trapped after explosion at coal mine in China
-
Now Playing: Activist hauled off while speaking to press at Moscow protest
-
Now Playing: Protests erupt across Russia in support of Navalny
-
Now Playing: New concerns over global access to COVID-19 vaccines
-
Now Playing: ABC News Live Prime: Friday, January 22, 2021
-
Now Playing: The Rundown: Top headlines today: Jan. 22, 2021
-
Now Playing: Scotsman launches haggis to stratospheric heights
-
Now Playing: Inauguration Day, Migrant clash, Dino Selfie: The Week in Photos
-
Now Playing: 93-year-old painter makes dolls for children affected by the explosion in Beirut
-
Now Playing: ABC News Live Prime: Thursday, January 21, 2021
-
Now Playing: The world watches as President Joe Biden takes over
-
Now Playing: How will President Joe Biden handle China?
-
Now Playing: Snake catcher comes to the rescue for family in Australia
-
Now Playing: Inauguration Day, a giant cave, vaccine dance: World in Photos, Jan. 21
-
Now Playing: Playful kitten experiences snow for the first time and falls in love
-
Now Playing: Rescue pig celebrates birthday with special cake