Continuing with our Biblical theme...
The lion lies down with the lamb**.
I'm not sure who's the lamb here, though:
Polly, or Berry?
** This is actually a misquote. In the King James version of the Bible, it’s the wolf that dwells with the lamb, and it’s a leopard that lies down with a kid, and “the calf and the young lion and the fatling together.” (Isaiah 11:6)