What happened?

This afternoon (Tuesday) we went back outside to check on our five caterpillars. We got to the first swan plant which had two caterpillars on it yesterday and we found that there was only one! We then went and looked at the other two plants to see if it had moved plants. There were four caterpillars on it but they were all too small to be the one we had lost.

We all looked and looked for our big caterpillar, we couldn't see him anywhere. We were surprised when one of our Room 4 scientists found it in another plant. We were very worried that he wouldn't like that plant so we had to  move him to another swan plant.

We noticed two things.
1. There was one more caterpillar than yesterday. How did we get another one?

Maybe a butterfly came along an laid one egg. 
An egg was on the leaf because the egg comes first. 
Maybe he was really tiny yesterday and we didn't see him. 


2. How did the caterpillar get all the way to the plant he didn't like?

Maybe he ate all of the leaf that he was on and fell off the plant. 
Maybe the two caterpillars were fighting because there isn't many leaves left on the plant and the caterpillar that lost had to go away.