The Milwaukee County Zoo is home to a few new friendly faces. On Wednesday, the zoo announced the birth of three Amur tiger cubs.

The cubs, born on Sept. 14, are all healthy as is their mother Amba.

As of Oct. 2, the cubs weigh in at 5.6 pounds, 5.9 pounds and 6.9 pounds.

The cubs are nursing from their mother about six to eight times a day. The zoo says their immune systems are still developing and they are in the beginning process of learning how to walk. They are expected to start walking at about 3 weeks old.

This is the second litter for Amba, but it’s the first litter born at the Milwaukee County Zoo since 2009.

The cubs father is Strannik.

Aside from their cuteness, the cubs have importance beyond the zoo. According to the Milwaukee County Zoo due to habitat loss and illegal trafficking, there are only about 500 Amur tigers left in the wild, and there are fewer than 3,200 tigers of all species left in Asia.

Zoo officials say an announcement will be released when the cubs are ready to make their public debut.

*Photo credit to the Milwaukee County Zoo