Three kinds of animals cross the river.

1, the lion and tiger crossed the river and the tiger rowed back; Tigers and tigers cross the river with big bears, and big bears row back; The big bear crossed the river with the little bear. 2. The bear crossed the river with the little tiger, and the little tiger rowed back; Tigers and tigers pulled the big lion across the river, and the big lion rowed back; The lion and the lion crossed the river.