Most of my Dolphin articles have been groups fishing together. I do have a series of photographs never published of a single Dolphin spinning/splashing schools of fish.
The Dolphin below swam close to the shore slowing pushing fish forward.
A short distance further, when they were grouped up he quickly spun around them in a fast tight circle.
When he had them bunched close enough he almost had a whirlpool.
Splashing with his tail he pushed them towards shore.
And caught them.
They don’t always strand these fish either. If they have enough of a circle and whirlpool made slamming their tail down stuns the fish and they are caught that way also.
Amazing behaviour Ted!
Evolution. Pushing on the shore goes against their basic instinct. But they have learned to do it. Amazing how they have included other techniques.