It was hot at the National Zoo in Washington, D.C., this weekend. Really hot. The iPhone weather app displayed a sweltering 100 degrees.
"It feels like a million degrees," says Tammy Long, who was visiting from Pennsylvania with her husband and 2-year-old daughter. "It's sweltering out here."
Parents and kids crowd under what look like giant shower heads throughout the park. Cool mist covers them from head to toe.
Families camp out in the shade, many with ice cream in their hands. Craig Saffoe says this works for the lions and tigers, too.