Brain Test Level 69 Click on the animals

Daze Puzzle provides a complete walkthrough for "Brain Test Level 69: Click on the animals, from smallest to biggest.".

By Daze Puzzle /
Question
Click on the animals, from smallest to biggest.
Hints
Hint 1:
I said animals :)
Step 1
Step 2
Answer
Tree is obviously not an animal so just click on mouse, lion and elephant.