Pleurobranchaea Learning (VIDEO)
Caption
The predator initially attacks the Flabellina, but drops it after getting stung in the mouth and tries to spit out the stinging tissue. After executing an avoidance turn the predator crawls away. Flabellina is performing an escape swim, which doesn't go anywhere because there is no current in the aquarium. Thirty minutes later the Pleurobranchaea is re-introduced to Flabellina, and once it recognizes the odor, storms off again! The memory lasts over a week.
Credit
Rhanor Gillette
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License
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