Now Playing: Alligator cools down in waves at Myrtle Beach
Now Playing: Alligator takes stroll along Houston bridge
Now Playing: Over 100 people were trapped in cars after massive mudslides in Colorado
Now Playing: CDC is out with new data showing how much more contagious delta variant is
Now Playing: CDC issues new report with ‘troubling’ finding behind new mask guidance
Now Playing: Why heterosexual women are in last place of the orgasm race
Now Playing: How can someone experiencing domestic violence get help?
Now Playing: Amid surge in gun incidents across US, heartbreaking stories of domestic violence
Now Playing: ABC News Live Prime: Friday, July 30, 2021
Now Playing: Florida COVID ward nurse: ‘We’re back to where we were in December’
Now Playing: By the Numbers: Pandemic learning loss
Now Playing: The Rundown: Top headlines today: July 30, 2021
Now Playing: ‘Super-spreaders of digital disinformation’ hindering COVID vaccine efforts
Now Playing: Rescued river otter pup gets care at Oregon Zoo
Now Playing: ICU nurse describes toll of working amid pandemic
Now Playing: America’s oldest working nurse retires at 96
Now Playing: CDC: ‘War has changed’ as dangerous delta variant spreads
Now Playing: Workers trapped by construction collapse in New York City
Now Playing: Mudslide traps more than 100 people in cars
