In Japan, the owner of otters with funny nicknames Kotaro and Hana decided to check how the animal would react to optical illusions.
Videos with these otters are very popular on the Internet and users were happy to see the new video.

In the footage, the otter tries to climb into the device with the anti-gravity illusion of falling water with its snout and cannot get drunk in any way. The animal climbs into the hole anyway, but nothing comes out. For the effort, the host rewards the otter with treats.