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The World Wide Fund for Nature says that 90 % of all northern right whales killed by human activities are from ship collision , calling for restrictions on the movement of shipping in certain areas .
 World Wide Fund for Nature
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:
 World Wide Fund for Nature