For our butterfly unit, Logan and I raised caterpillars until they turned into butterflies. Once it was time to release them, my sweet little love bug was not too keen on the idea of letting them go. He'd look at me, his big brown eyes wide, and ask, "How about we keep them? They can be my pets." And as keen as I was on the idea of having bugs in my house, I knew that we couldn't possibly keep them for much longer. So, once I explained that they needed to go back home to their mommy, he seemed happy to lend a hand to his winged friends.