Now Playing: Hippo celebrates birthday at San Antonio Zoo
Now Playing: Alligator attacks zoo handler at birthday party
Now Playing: Rescued river otter pup gets care at Oregon Zoo
Now Playing: US airstrike kills ISIS-K target
Now Playing: Remembering US service members killed in Kabul attack
Now Playing: Connecticut congressman says Afghanistan exit ‘not an intelligence failure’
Now Playing: San Diego father waits anxiously for family stranded in Afghanistan
Now Playing: American escapee: ‘Afghans that were left behind are in mortal terror right now’
Now Playing: The Rundown: Top headlines today: Aug. 27, 2021
Now Playing: ABC News Live Prime: Friday, August 27, 2021
Now Playing: Urgency grows to evacuate Americans, allies before deadline
Now Playing: Former Marine helps Afghan interpreter escape
Now Playing: The Breakdown: Fallout after deadly terror attack on Kabul airport
Now Playing: GOP congressman: US must do ‘whatever it takes’ to get Americans out of Afghanistan
Now Playing: White House warns another attack on Kabul airport is likely
Now Playing: How US forces could hunt down ISIS-K leaders responsible for Kabul attack
Now Playing: Afghan women’s rights advocate speaks on current situation in Afghanistan
Now Playing: US evacuation flights resume out of Afghanistan
Now Playing: Kabul turmoil, Tennessee flooding, Sydney surfing: Week in Photos
Now Playing: ABC News Live: Only 1 suicide bomber attacked Kabul airport, Pentagon says
