Three endangered Sumatran tiger cubs have made their debut at San Diego Zoo Safari Park.
Visitors got their first glimpses Tuesday of Nelson, Cathy and Debbie as the 3-month-old cubs romped and munched on plants in their habitat.
The trio was born in late January to Joanne, a Sumatran tiger that's a popular attraction at the zoo. Zookeepers say Joanne is a doting mother.
They say Nelson, the male, is the largest and calmest of the three cubs. His sister Cathy is the most vocal, and Debbie is the most adventurous.
Fewer than 350 Sumatran tigers are thought to exist in the wild. They are found only on the Indonesian island of Sumatra.