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Species that have multiple queens may have a queen leaving the nest along with some workers to found a colony at a new site , The use of pheromones as chemical signals is more developed in ants , such as the red harvester ant , than in other hymenopteran groups .
 animal: red harvester ant
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:
 animal: red harvester ant