Then Explain: Firetruck — It's not a truck that is on fire nor is it a truck that delivers fire. Butterfly — Not a fly made of butter. Starfish — Not a fish,

Then Explain: Firetruck — It's not a truck that is on fire nor is it a truck that delivers fire. Butterfly — Not a fly made of butter. Starfish — Not a fish, not a star. Pineapple — Neither a pine nor an apple. Guinea pig — A rodent, not a pig. Koala bear — A marsupial, not a bear. Silverfish — An insect, not a fish.