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In 2011 , researchers found that in streams and rivers in the Iberian Peninsula , juvenile largemouth bass were able to demonstrate trophic plasticity , meaning that they were able to adjust their feeding habits to obtain the necessary amount of energy needed to survive .
 location: Iberian Peninsula
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: Iberian Peninsula