50349
Being relatively small , spiders do not fit the usual criterion for a threat in the animal kingdom where size is a factor , but they can have medically significant venom .
 animal kingdom
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:
 animal kingdom