107439
Tributyltin is harmful to some marine organisms , including the dog whelk , it causes dog whelks to suffer from imposex ; females develop male sexual characteristics such as a penis .
 dog whelk, imposex
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:
 dog whelk, imposex