96059
Research requiring vivisection techniques that cannot be met through other means is often subject to an external ethics review in conception and implementation , and in many jurisdictions use of anesthesia is legally mandated for any surgery likely to cause pain to any vertebrate .
 vertebrate
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:
 vertebrate