ลำดับสีแดง 7 ตัวในตระกูล Didelphidae คืออะไร?
What is the order for a red list of 7 in the didelphidae family?
df = pd.DataFrame(columns=['order', 'red_list', 'family'])
df[(df['red_list']==7) & (df['family']=='didelphidae')]['order']