This clustering of births is common in nature: “Young animals are always at risk in the wild. If many young animals are born within a short period of time, their chances of survival are greater,” says Managing Director Doris Wolkner-Steinberger , delighted.

It's always a special experience for visitors when they get to see baby animals—or maybe even witness a birth—up close. The chances of that happening in the next few days are very high.

By the way, bison calves are naturally very strong: Anewborn weighs about 30 kg, and a fully grown bison can weigh up to 1,100 kg—as much as a small car!