How wolves changed the river

P1: Wolves ate deer so less dear were in the

park to eat the trees. So the trees grew back.

P2: More trees grew so that meant more

birds and beavers came back to the park.

P3: The beavers Made the dams in the river.

The dams caused ducks, rats, fish and reptiles

to come back to the park.

P4: The river changed and became bigger

because the trees and plant roots helped

the river bank to stay which made the river

cleaner and bigger.