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SPANISH SHAWL (Flabellina iodinea) SAYS DANCE OR DIE
The california side-gill slug attemps for eating other sea slug ends in an extravagant dance by spanish shawl (the potential prey) - and a learning experience for the hungry predator.
The sequence of GIFs shows an interaction that reveals Pleurobranchaea californica (the predator), is smarter than previously thought (It has a relatively simple neural circuitry and set of behaviors). The nudibranch, who is generallist (a heterotroph with a varied diet) learn to avoid unpleasant prey.
Thirty minutes after experiment, both are reintroduced. This time P. californica's response to the odor of the Spanish shawl is one of clear avoidance, a learned response that is selective to the odor and strongly evident at 48 h after a previous experience