That was part of what made it so easy for the twins to get along with 2- he had a sense of wonder and excitement about things that they could relate to.

3 nodded eagerly at the idea of meeting the humans, even if for the moment the birds had their full attention, cataloging the ones that they knew they'd never seen in books before.

If the world was anything like this before then it had been beautiful. And maybe would be again someday.