101078
However , certain phenomena , such as bird or whale migration , depend on more complex parameters not used to define the current database , such as atmospheric currents and dynamic pelagic ecosystems .
 migration
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 migration