After a seven-year break, Schönbrunn Zoo can once again look forward to successfully breeding Arctic wolves. At the end of April, four young animals were born in a deep burrow and were initially raised there by their mother. “In the beginning, wolf cubs still have their eyes closed and are completely helpless. They need the protection of the den and the care of the mother. The four little ones can now often be seen playing, drinking and exploring. They also gain their first social experiences with the pack,” reports animal keeper Paul Wagner. They rarely retreat to the burrow to sleep. Wolf cubs are nursed for about three months. Gradually, they also begin to eat meat.