the Formation of Cypress

And Rabba bar bar Ḥana said: I have seen a certain frog [akrokta] that was as large as the fort [akra] of Hagronya. And how large is the fort of Hagronya? It is as large as sixty houses. A snake came and swallowed the frog. A raven came and swallowed the snake, and flew up and sat in a tree. Come and see how great is the strength of the tree, which could bear the weight of that raven. Rav Pappa bar Shmuel said: If I had not been there and seen this, I would not believe it.