Below code is for your coecademy course for maintaining order and this code suppose to find index for "duck" and insert new string "cobra".As per me below code are correct but still it gives me error i.e (Oops, try again. It looks like there may have been a problem with insert() or index(). Double check them!)
animals = ["aardvark", "badger", "duck", "emu", "fennec fox"]
duck_index = animals.index("duck") # Use index() to find "duck"
Your code here!
print animals # Observe what prints after the insert operation