A Thai man has been arrested after he was caught climbing into the enclosure of pygmy hippo Moo Deng at the Khao Kheow Open Zoo in Thailand. The man entered the enclosure while a keeper was away and no other visitors were present. Security footage shows the man approaching the animals and apparently recording or taking photos. The police have charged the man with trespassing, but the investigation is ongoing. The zoo has released the suspect on bail and is urging visitors to follow all rules and instructions from staff for the safety of themselves and the wildlife.