How wolves changed rivers.

How wolves changed rivers.

By Kirsten

  You may think that wolves are scary but they're not they can help. The wolves in yellowstone national park helped rivers, animals and many more.

Ever since the wolves came back there were less deers because the wolves changed the behavior so they hid, therefore there were more plants because deers ate plants therefore animals started to come back.

When the wolves didn’t come 60 years ago animals that kill other animals were gone. Therefore when wolves were introduced they killed coyotes so bevers came back and because beavers  built dams therefore more animals came back to the park.

When the beavers came back it led to change in the behaviour of the rivers there were less erosions because the beavers built dams so the soil was pushed out of the rivers therefore there were less erosions.

So that is how wolves helped which leads to life and nature back to the park because even though they are scary they can make a good change therefore animals will be happy once again.






In room 8 we learnt how to write an explanation writing. We wrote how wolves changed rivers. I learnt when you make an explanation writing you must include cause and effect words and Technical words. I enjoyed writing it. I hope try writing an explanation writing and you enjoy it to.