September 07, 2016 03:18 PM

The Schoenbrunn Zoo knows the sexes of the one-month-old twins Yang Yang the panda recently bore.

In a post on its website on Tuesday, the zoo revealed the cubs are a boy and a girl.

“After three males, we are delighted that one of the juveniles is a [female],” said zoo director Dagmar Schratter.

Facebook footage of the family in their “bamboo nest” in Vienna is captivating to watch, and believe it or not, the babies are already showing their individual personalities.

The male was observed to be impatient while feeding and the female is quite quiet, the website post said. On average, the baby pandas, who weigh about two pounds each, eat every four hours and can even be left alone briefly while their mother leaves the birthing den to feed.

The first 100 days after birth remain very critical for these two. Per Chinese tradition, they won’t receive names until 100 days have passed.

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