Atthapon, who has worked at the zoo for eight years taking care of hippos, sloths, capybaras, and binturongs, said baby hippos are usually more playful and energetic, and they become calmer as they get older.

The zoo saw a spike in visitors since Moo Deng’s fame — so much that the zoo now has to limit public access to the baby’s enclosure to 5-minute windows throughout the day during weekends.

Narongwit said the zoo has been receiving over 4,000 visitors during a weekday, up from around just 800 people, and more than 10,000 during a weekend, up from around 3,000 people.

But the fame has also brought some hostile visitors to Moo Deng, who only wakes up ready to play about two hours a day. Some videos showed visitors splashing water or throwing things at the sleeping Moo Deng to try to wake her up. The hippo pit now has a warning sign against throwing things at Moo Deng — posted prominently at the front in Thai, English, and Chinese.

Narongwit said the zoo would take action under the animal protection law if people mistreat the animal. But clips emerged of people treating Moo Deng poorly, and the backlash was fierce. The zoo director said that since then, they haven’t seen anyone doing it again.

For fans who can’t make the journey or are discouraged after seeing the crowds for Moo Deng, the Khao Kheow Open Zoo set up cameras and plan to start a 24-hour live feed of the baby hippo in the coming week.