Found this video of giant otter behavioural enrichment at Dortmund zoo YouTube - MVI_3270.avi teasing i call it
Yeah, I'd call that teasing too. They do this in the Arctic ring of life in Detroit, supposidly for enrichment. I think it benefits the public more than the animals though. It's like tying someone up and leaving the key just out of reach lol.
Blijdorp had a similar exhibit with mongolian mice and pallas' cats The Pallas kittens seemed to enjoy chasing the mice along the glass and the mice didn't seem to care one bit...
I have taken this video on last saturday and I cannot imagine that they have filled the indoor pools with soil within 4 days..... I will post some pics today to illustrate the indoor enclosure....