This is part of the show given in the dolphinarium of Pyongyang, North Korea. Notice how the dolphin actually gets the right answer to the numeric question!
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Dolphin Nautilus CC Plus Automatic Robotic Pool Cleaner with Easy To Clean Large Top Load Filter Cartridges and Tangle-Free Swivel Cord, Ideal for In-Ground Swimming Pools Up To 50 Feet
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Dolphin Tale (2011)
(as of September 10, 2020 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
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Dolphin Nautilus CC Automatic Robotic Pool Cleaner - Ideal for Above and In-Ground Swimming Pools up to 33 Feet - with Large Capacity Top Load Filter Basket
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Disappointing.
@GEOPAHAS notice that the answer to the numeric question is always the same and they simply trained the Dolphin to depress the bar 4 times. So as long as the sum of the answer is always 4 they can mix it up a bit
So sorry for the dolphin. No dolphin lover support such entertainment