Plankton: What a big mouth you have!
Manta ray:The better to eat you with!
P: But why do you want to eat me?
M: To become even bigger and live a long, wonderful life.
P: But I am so tiny – you should eat big fish, or giant octopus, or other big stuff which can fill your stomach. Eating me, you will never be full, but stay hungry.
M: No, a lot of tiny plankton all the time is much better than one huge bite from time to time. I just have to