Four red pandas have been born at the Denver Zoo boosting the number of the endangered species.
The quadruplets, three males and one female, were born on July 9 to the red panda mother named Sophia and its mate He-Ping.
The same mother panda coming from the Mill Mountain Zoo in Roanoke, Virginia gave birth to twin cubs last summer. Its mate came from the Milwaukee Zoo.
Sophia will nurse the cubs for three months before the small bears are exhibit in the zoo.
There are only about 2,500 red pandas known to live in the wilds in Asia.
