HAMBURG, GERMANY (CNN) - Four Siberian tiger cubs saw the outside world for the first time at a zoo in Hamburg, Germany.
They were born in June.
The two males and two females have been secluded indoors in their litter box.
According to the zoo, the mother summoned the cubs out of the tiger house on Thursday.
The cubs spent their day exploring the outside world, including the pond and grass.
The four are the first cubs to be born at the zoo in 15 years.
The zoo is turning to social media to ask the public to name them.
To help, you can visit their website, which is in German.
Copyright 2017 CNN. All rights reserved.