please help! i need an outline for this thing i am doing in my english class, and i don't know how to start my outline as!

the format i have to use is this:
Thesis Statement:
I. First Main Topic
A. First Subtopic
1. First Specific Detail
2. Second Specific Detail
3. Third Specific Detail
B. Second Subtopic
1. First Specific Detail
2. Second Specific Detail
a. More information about this detail
b. More information about this detail
c. More information about this detail
C. Third Subtopic
1. First Specific Detail
2. Second Specific Detail
a. More information about this detail
b. More information about this detail
II. Second Main Topic
A. First Subtopic
1. First Specific Detail
2. Second Specific Detail
B. Second Subtopic
1. First Specific Detail
2. Second Specific Detail
III. Third Main Topic
my topic is about animal intelligence, and here are some images stating what it is.
i will give brainliest for someone who helps me with this!