Now Playing: A seal pup, autumn colors and a Florida sunrise: World in Photo
Now Playing: Hurricane Michael, Indonesia earthquake, Brazil elections: World in Photos
Now Playing: Soyuz Rocket Failure
Now Playing: Pompeo: Saudi probe into Khashoggi disappearance ‘thorough’
Now Playing: Trump: Saudi crown prince ‘denied’ knowledge in Khashoggi case
Now Playing: Canada to begin legal sales of marijuana
Now Playing: New details on missing Saudi journalist
Now Playing: Prince Harry and Meghan Markle meet koalas on first day of tour Down Under
Now Playing: New developments in mystery surrounding journalist’s disappearance
Now Playing: Massive hunt for killer tiger in India
Now Playing: Autumn in China, Pompeii excavation, Tokyo street fashion: World in Photos
Now Playing: Elephants, drones and cologne employed in hunt for killer tiger in India
Now Playing: Harry, Meghan celebrate baby news in Australia
Now Playing: Freed American pastor speaks about captivity, meeting with Trump
Now Playing: Pompeo heads to Saudi Arabia over missing journalist
Now Playing: Mike Pompeo heads to Saudi Arabia
Now Playing: Harry and pregnant Meghan make friends with a koala
Now Playing: Meghan Markle, Prince Harry to welcome baby in the spring
Now Playing: Trump points to ‘rogue killers’ in journalist’s disappearance
Now Playing: Royal baby watch! Meghan Markle and Prince Harry are expecting
